Dec 26, 2012

Bats Threatened by White-Nose Syndrome

Bats Threatened by White-Nose Syndrome

 

By Gayle Pille

 

Whether you like bats or not, there is no denying their benefits.  The little bug zappers have been around since the days of the dinosaurs and eat anywhere from 50 to 100 percent of their body weight nightly.  A single Big Brown Bat can devour up to 7,000 mosquito-sized insects a night.  A colony of 150 Big Browns can consume more than a million insects a year.  Put that in dollars and cents and the economic benefit of bats to the agricultural industry is approximately $22.9 billion per year.  Without this natural means of pest control, insect populations would explode.

 

But bats are facing a threat in North America like they have never faced before.  A fungus, almost certainly from Europe and probably transported into a cave on a visitor's boots or gear, is devastating eastern bat populations.  The disease, called White-Nose Syndrome (WNS), was first discovered in a New York cave in 2006.  Now, only six years later, WNS has spread to four Canadian provinces and 19 states, including Kentucky and all of our bordering states.

 

White-Nose Syndrome is a cold-adapted fungus that affects hibernating bats while in their hibernacula.  A white fungus occurs on an affected bat's nose, ears and wings attacking the skin and fur and causing severe tissue destruction.  The fungus appears to "itch" the bats forcing them to arouse regularly from hibernation and behave erratically.  Many leave the warmth and safety of their cave in the dead of winter.  This disruption to their hibernation cycle depletes much needed fat reserves, prematurely causing the bats to freeze or starve to death. 

 

Mortality rates are staggering.  Many eastern caves have experienced 90 to 100 per cent mortality.  To date, between 5.5 and 6.5 million bats have perished.  Biologists have described it as "the most precipitous wildlife decline in the past century in North America."  To make matters worse, the disease keeps spreading and is now as far west as Oklahoma.

 

Bats that hibernate in caves in tight clusters are most at risk, including Eastern Pipistrelles, Northern Bats, Little Brown Bats, and endangered Indiana Bats and Gray Bats.  However more solitary species as Big Brown Bats and Long-eared Bats are also experiencing severe losses.  Many species are expected to go extinct regionally in some parts of North America.  And for those that do rebound, it could take decades or even centuries for them to make a comeback.

 

If you want to help bats and control local insect populations organically, install a bat house.  Bat houses offer one of the best opportunities for survivors to successfully reproduce. 

Contact Gayle at her website for nest boxes at www.woodlandhabitat.com or gaylepille@yahoo.com

Jan 9, 2010

Bald Eagles Making a Comeback

Lee McNeely, president of the Northern Kentucky Bird Club, was pleasantly surprised this past spring at the number of American Bald Eagles he spotted on the Ohio River.  One day, on an 8-mile stretch of the Ohio between Belleview and Petersburg in Boone County, he spied 7 Bald Eagles.  “That was very unusual,” said Lee.  “Usually on a good day I’ll see one, maybe two Bald Eagles.”  The sightings though are reassuring.  The Bald Eagle is finally making a comeback in Kentucky and the lower 48. 

 

“Until the 1980’s, the previous recorded nest in Kentucky was in the early 1950’s,” said Lee.  “We went a full 35 years without a single eagle nest in the state.”  The Bald Eagle, like so many other birds, had fallen victim to the effects of DDT, a now banned insecticide in the U.S. 

 

DDT, for a period of time, was a seemingly effective insecticide. It quickly killed the mosquitoes that spread malaria and the lice that carried typhus, and is credited with saving millions of lives.  Eventually though many insects developed a resistance to DDT and produced offspring that were also resistant.  DDT was also highly toxic to the fish in our waterways.  A recipe for disaster was brewing.

 

A “persistent insecticide,” the molecules in DDT stay together as a poison for a long time before breaking down into smaller, less toxic substances.  It washed deep down into the soils, our streams, and lakes.   DDT became entrenched in the food chain.  And because it does not break down easily, DDT builds up in fatty tissues where it persists for long periods of time.  It takes an animal 8 years to metabolize one-half of the DDT it consumes – more than a lifetime for many species of birds and mammals.  Birds, like the Bald Eagle and Brown Pelican, ingested DDT after eating contaminated fish.  The DDT caused their eggshells to be thin and brittle, so brittle that eggs were broken on the nest as parents sat on them during incubation.  Eagle numbers plummeted to only hundreds of nesting birds in the contiguous U.S.

 

DDT was banned in 1972.  “Eagles have been slowly re-establishing, especially in Western Kentucky,” said Lee.  “There are also a couple of nesting pairs in the Cincinnati area, one in Brown County, Ohio and another along the Great Miami River.”  According to Kentucky Fish and Wildlife, we now have a healthy population of 48 nesting pairs of eagles in the state, with another 100 to 300 over-wintering.  Having been taken off the Federally Endangered Species List, things are looking up for the Bald Eagle.  “They have recovered well and will probably continue to do so,” said Lee.

 

The United States adopted the Bald Eagle as its national emblem in 1782.  At that time there were at least 100,000 nesting eagles in the U.S.  They were at their lowest levels, about 800 nesting eagles, in 1962 when Rachel Carson raised awareness with her landmark book Silent Spring.  Now, with their numbers steadily increasing and DDT long since banned, we have approximately 20,000 nesting eagles.

  

Most would agree that the Bald Eagle is a regal bird and an appropriate national emblem, though some would beg to differ.  “Suffer me, kind reader, to say how much I grieve that it should have been selected as the Emblem of my Country,” said John James Audubon.  “He is a bird of bad moral character; he does not get his living honestly,” complained Benjamin Franklin.  Fortunately, Thomas Jefferson and John Adams disagreed with Franklin, and with the help of Philadelphia resident William Barton, the Bald Eagle was chosen as our national emblem.

 

A true American, the Bald Eagle is the only eagle unique to North America, with a range from northern Mexico to northern Alaska and Canada.  “They’re always found close to water,” said Lee.  Fish is their staple food but they’ll also eat waterfowl, turtles, rabbits, snakes and carrion.  Like other birds of prey, females are larger than males and can weigh up to 14-pounds with an 8-foot wingspan.

 

Bald Eagles mate for life and can live more than 30 years in the wild.  Their nests are an architectural marvel, which they typically enlarge yearly.  These stick nests can reach 12-feet across and weigh more than a ton.  No other bird in the world builds such a large nest.

 

Females lay one to three eggs per year, which hatch in about 35 days.  Eaglets are flying within 3 months and are no longer dependant on their parents at 4 months.  They are sexually mature and acquire their majestic looking white head and tail feathers when they are about 4 to 5 years old.

 

American Bald Eagles are more than a national emblem.  With their near extinction and successful recovery, they represent the worst and best their human counterparts can achieve.

 

Contact Gayle at her website for nest boxes at www.woodlandhabitat.com or gaylepille@yahoo.com

 

Flying Tigers

Journeyman climber Chris Bramlage of Newport was intrigued by a recent request.  A friend of his roommate’s needed someone to hang a few Great Horned Owl nest platforms in some trees, way high in the trees.  Chris can climb anywhere in just about any tree, so climbing 80-foot up a streamside sycamore was really no big deal.  He was just a little taken aback that someone would actually hang the bottom of a 55-gallon plastic drum in a tree – for an owl.

 

The bottom of a large plastic drum is actually a perfect nest for the owls.  Great Horned Owls don’t make their own nests, instead usually relying on abandoned nests of Red-tailed Hawks, squirrels or hollowed trees.  By nesting in the dead of winter, January and February, these owls don’t have to compete with the hawks and squirrels for nest sites.

 

Great Horned Owls are North America’s largest owl with ear tufts.  They are frequently referred to as the “Tiger of the Sky” for their fierce demeanor.  Get too close to nesting Great Horned Owls and you’ll likely end up in the emergency room covered with cuts from their lethal talons.  Their powerful talons have the crushing power of 500 pounds per square inch, compared with a human’s paltry 60 pounds per square inch.  Prey caught by Great Horned Owls doesn’t suffer; it is killed instantly.

 

A Great Horned Owl can easily take prey two to three times larger than itself.  They like to take the largest prey available since smaller prey costs more in energy than is benefited in food.  Common dinner fare consists of other birds, rabbits, raccoons, squirrels, mice, snakes and bats.  Since they have no sense of smell, they are one of the few animals that will readily eat skunks.  And don’t be surprised if your cat or small dog doesn’t come back home after a nightly foray.  Several Northern Kentuckians have lost small pets to this efficient and non-discriminate predator.

 

Great Horned Owls have evolved several adaptations that make them such skilled hunters.  Primarily nocturnal, they have excellent nighttime vision and can see about 100 times better than people can after dark.  Their eyes are fixed forward so when an owl wants to see something off to the side, it must move its whole head.  They have twice as many neck bones as humans, which allow them to rotate their heads 270-degrees, almost full-circle.

 

Their hearing is as good, if not better, than their eyesight.  One ear is positioned higher than the other, allowing them to hear noises from above and below.  As with other owls, their rounded face forms a facial disc, which acts as a sort of satellite dish, allowing them to receive sounds and funnel them to the ears.

 

They have up to a 5-foot wingspan, though you’ll never hear the flap of their wings.  They possess “silent flight.”  Their flight feathers are fringed in order to muffle the sound of approach.  Prey never hears them coming.

 

Now is an excellent time to hear Great Horned Owls.  They have chosen their mates and can often be heard calling to one another.  The duet is a simple call…”hoo, hoo, hoooooo, hoo, hoo.”  The male has a noticeably deeper voice than the female.

 

Soon the female will be on the nest incubating 2 to 3 eggs.  Incubation lasts about a month.  The male is always close by helping with incubation and feeding the female while she is on the nest.  Once the eggs hatch, both parents feed the ever-hungry chicks.  Young owls start branching at 6 weeks and fledge at around 2 months.  Young stay with their parents through the summer and disperse the following fall to establish territories of their own.

 

It is never wise to approach a Great Horned Owl nest.  Few birds are as aggressive in defending their nest.  They will continue to attack an intruder until it is either killed or driven off.  Their talons are formidable weapons.

 

Great Horned Owls are long-lived birds and, other than humans, have few natural enemies.  It is not uncommon for them to live close to 20 years in the wild.

 

Chris has hung 6 nest platforms for the owls in Northern Kentucky so far this year.  He’s now eager to see if any of these airborne tigers take advantage of the housing he’s afforded them. 

 

Contact Gayle at her website for nest boxes at www.woodlandhabitat.com or gaylepille@yahoo.com

 

Our Accipiters

They are the hawks that also frequent our bird feeders; only it’s not birdseed they’re looking for.  They are visiting our feeders to eat the birds we have become so attached to… our cardinals, robins, wrens, goldfinches and nuthatches.  They are Accipiters.

 

With their characteristic long tails and short rounded wing, these woodland hawks fly through the trees like fighter pilots.  Their wings allow them to quickly dodge around and between trees and branches.  The long tail aids in braking and making fast turns.  And though they’ll also eat small mammals, snakes and lizards, other birds are their primary food choice.  Our bird feeders, with dense concentrations of “feeder birds” make for easy pickins’ for these handsome and eloquent-looking hawks.  It’s a spectacle worth observing.

 

Debbie Macke of Park Hills has been watching and feeding birds for most of her 60-plus years.  She wasn’t prepared though as she watched events unfold at her home near Devou Park last winter.  At first all seemed well at her well-stocked feeders.  Then all of a sudden her birds seemingly disappeared and the few she could see were frozen in place, obviously hiding.  Above, in a tree outside her family room window was a hawk Debbie had never seen before, eyeing her feeders like a high school football player at KFC.  It wasn’t long before a wayward starling was nabbed in flight by the hawk in her side yard.  “Unbelievable,” said Debbie.  “It happened so quickly.”  A search in her Peterson Field Guide revealed the culprit, a Sharp-shinned Hawk, one of three Accipiters native to North America

 

Sharp-shinned Hawks (Accipiter striatus), or Sharpies, are the smallest of our Accipiters, about the size of a Blue jay.  They are the most widely distributed Accipiter in North America, inhabiting virtually all of North America into the Caribbean, Central and South America.  Mature sharpies have slate colored upper parts with a dark crown.  Their under parts are white with brown bars on the breast.  The tail is square-tipped with 3 to 5 dark stripes.

 

Sharpies are opportunistic hunters.  They’ll hunt from a perch and dart from hiding to catch prey, with birds comprising 90 percent of their diet.  They pluck their fowl before dining, and usually get sufficient miosture from their prey and drink very little water otherwise. 

 

Cooper’s Hawks (Accipiter cooperii), or Coops, are our medium sized Accipiter and are about the size of a crow.  They look very similar to Sharp-shinned Hawks and the two are easily confused.  The crown of the Coop is darker than the Sharpie, and the tail is rounded at the tip while the Sharpie’s tail is more squared.  Their diets and hunting style are similar, with birds making up the bulk of their diet.  Coops eat an extraordinary amount of food relative to their size, up to 12%of their body weight per day.  In human terms, it’s like a 200-pound person eating 24 pounds of food daily.  The Cooper’s Hawk was named after naturalist William Cooper, a founder of the New York Lyceum of Natural History in 1817, which later became the New York Academy of Sciences.

The Northern Goshawk (Accipiter gentilis) is our largest Accipiter, about the size of a Red-tail Hawk.  This bird not only inhabits North America, but is also found across Europe and Asia.   Because of its speed and fearless demeanor, it has for centuries been a favorite of falconers.  Adults are slate gray above and barred gray below with pronounced dark eye lines and crown. 

 

The common name “goshawk” is derived from “goose hawk,” and deservedly so as ducks are one of this birds favorite foods.  Goshawks though are not nearly as dependent on birds as a food source as are Coops and Sharpies.  In the Northern Boreal Forest they are so reliant on Snowshoe Hares that they will not even reproduce unless the hare population is abundant.  A more northern species, Goshawks are only rarely seen in our area.

 

All Accipiters are reverse dimorphic, meaning that females are considerably larger than males.  A female Sharp-shinned Hawk is very similar in size and coloring to a male Cooper’s Hawk.  The immature birds of all three species are brown above and lightly barred below.  Proper identification is tricky; a good pair of binoculars and field guide is almost essential. 

 

Our Accipiters are long-lived birds, and can live from 15 to 20 years in the wild.  Like so many other birds, they were severely impacted by the pesticide DDT.   Fortunately, DDT was banned in 1972 and all have made healthy comebacks.  Habitat loss is now their biggest threat.

 

Naturalist and artist John James Audubon painted and described all three of these fascinating birds.  His comments ring every bit as true now as they did in the early 1800’s…

 

“While in search of prey, the Sharp-shinned Hawk passes over the country, now at a moderate height, now close over the land, in so swift a manner that, although your eye has marked it, you feel surprised that the very next moment is has dashed off and is far away.   The food of this Hawk consists chiefly of birds of various sizes, from the smallest of our warblers to the Passenger Pigeon…”

 

“The marauder (Cooper’s Hawk) frequently attacks birds far superior to itself in weight, and sometimes possessed of courage equal to its own.  This species frequently kills and eats the Grouse commonly called the Pheasant.  Partridges and young hares are also favourite dainties.  It also follows the Wild Pigeons in their migrations, and always causes fear and confusion in their ranks.”

 

“I have found them (Northern Goshawk) rather abundant in the lower parts of Kentucky and Indiana…They caught Mallards with ease, and after killing them turned them belly upwards, and ate only the flesh of the breast, pulling the feathers with great neatness, and throwing them round the bird, as if it had been plucked by the hand of man.”

 

Contact Gayle at gaylepille@yahoo.com

 

Earth's Mass Extinctions

Extinction is nothing new to Planet Earth.  At 4.5 billion years old, the planet has endured many periods of extinctions.  There have however been a number of massive extinctions, when an overwhelming, almost unbelievable number of species were forever wiped off the face of the Earth.  They are considered mass extinctions and there have been five of them during Earth’s history.

 

“The causes are still being intensely studied,” said paleontologist Dr. Brenda Hunda of the Cincinnati Museum Center.  “Changes in climate, sea levels, sea chemistry, extensive volcanism, meteorites, and glaciations have all caused massive extinctions.”

 

“Extinction is a natural event,” continued Dr. Hunda.  “Extinction and evolution go hand in hand.    Extinction leaves open ecological space, creating a niche and is good in many ways.  Species have to go extinct for other species to evolve.”

 

And if you think Homo sapiens will rule the planet forever, think again.  “Ninety-nine point nine percent of all life that has ever lived on the planet eventually goes extinct,” said Dr. Hunda.  “Most mammals go extinct at about one million years.  Humans have large brains and can manipulate the environment.  They may last longer than many other mammals, but yes, at some point humans will go extinct.”

 

A brief description of Earth’s mass extinctions…

 

The Ordovician Mass Extinction occurred approximately 439 million years ago.  According to Dr. Richard Cowen of the University of California-Davis, this extinction occurred in two pulses.  The first happened as a big ice age began and glaciers formed causing sea levels to drop.  The second pulse occurred as the ice age ended and glaciers melted causing sea levels to rise.  Twenty-five percent of marine families were lost to this extinction event.  The fossils we so commonly see in the Cincinnati area today are from the Ordovician period. 

 

The Late Devonian Mass Extinction took place about 364 million years ago.  According to Dr. Cowen this was a major worldwide extinction of coral reefs and their associated plants and animals.  Evidence suggests an asteroid impact, or even a series of impacts on a planet that was already stressed by climatic and sea level changes.  The death toll was 22 % of marine families.  Fish were the dominant species at this time.

 

The End-Permian Extinction was about 251 million years ago and is sometimes called the Great Dying.  This was the earth’s most extensive mass extinction where 95% of all marine species of animals and 70% of land species (plants, insects and vertebrate animals) became extinct.  Dr. Cowen states that the evidence is conclusive that the cause of this mass extinction was an asteroid strike on the Earth’s surface along with the largest known volcanic eruption in Earth’s history.  A brief period of cooling was followed by a long period of intense global warming, a period of a thousand years or more, due to water vapor and carbon dioxide buildup in the atmosphere. 

 

The End-Triassic Extinction was roughly 200 million years ago.  Volcanism in what is now the Atlantic Ocean likely led to deadly global warming.  About 22% of marine families became extinct.  Dinosaurs and other vertebrates were also possibly impacted.

 

The Cretaceous-Tertiary Extinction was relatively recent, about 65 million years ago.  This mass extinction was caused by the impact of a large asteroid on the Yucatan Peninsula and beneath the Gulf of Mexico.  As with other asteroid strikes, global warming led to the extinction of numerous species of animals, including the dinosaurs.

 

According to famed Harvard biologist Dr. E. O. Wilson, after each of these mass extinctions it took more than 10 million years for evolution to replace the biodiversity lost.

 

Interestingly, global warming is associated with four of the five mass extinctions on the planet.  Politics aside, the question begs to be answered…are we in the midst of the Earth’s sixth mass extinction?

 

Dr. Hunda believes so.  “The first wave of the sixth mass extinction started 100,000 years ago when humans started migrating out of Africa,” said Dr. Hunda.  “Humans were competing with large animals causing huge mega-fauna disappearance.”

 

“The second wave started about 10,000 years ago when humans came across agriculture,” continued Dr. Hunda.  “With agriculture, humans no longer had to move around to get food.  They could stay put and build large communities.  Agriculture destroys species and ecosystems.  When monocultures are planted diversity is lost.  Humans no longer had to live as a part of nature.  Instead, they controlled nature.  Humans could take species and use them for their own purposes, and do so on a greater scale than any other species.”

 

According to Dr. Hunda, what makes this extinction different is that it is biological in nature, while previous extinctions were physical.  “This extinction is human mediated,” said Dr. Hunda.  “One species is causing the extinction of others.  Humans are a great biological agent for extinction.”

 

“We are living in a time when we can do damage to the Earth like never before seen,” said Dr. Hunda.  “We are losing species at an extraordinary rate and if it continues it could be at a level that would rival the five major mass extinction events.  It is not typical for a single species to wipe out tens of thousands of other species.  Species are going extinct before we can document them.  Things we never see will go extinct.”

 

Harvard’s Dr. Wilson estimates that we are losing 30,000 species per year, that is three species an hour.  Rain forests are thought to harbor more than half of the world’s biodiversity and are disappearing at roughly 2% annually, a yearly loss equal to the state of Florida.  Dr. Wilson estimates that for every 90% of habitat destroyed, 50% of its species disappear – often forever.  One species that is not disappearing though are Homo sapiens.  In the past 50 years humans have doubled their population.  Human population is expected to again double in the next 50 years.

 

Few scientists would argue the fact that global warming is greatly accelerating extinctions.  As the planet warms species either adapt, move north or to higher elevations.  That does not bode well for the likes of polar bears, emperor penguins, pandas and the many cold-dependant species that live on mountaintops with nowhere else to go.  More than a third of the world’s amphibian species are threatened with extinction.  “Disease is the bullet that’s killing the frogs,” said one scientist.  “But climate change is pulling the trigger.”

 

Dr. Hunda, a paleontologist who studies prehistoric life has a different take.  “Don’t worry about the planet, it will be just fine,” said Dr. Hunda.  “It’s us that won’t be okay.”

 

To learn more about our current climate change from a purely scientific point of view, listen to Dr. Richard Wolfson’s college lecture series “Earth’s Changing Climate” by the Teaching Company.  It can be found at your local library. 

Contact Gayle at her website for nest boxes at www.woodlandhabitat.com or gaylepille@yahoo.com

 

Apr 1, 2009

Virginia Opossum

They are “living fossils,” having survived relatively unchanged for at least 70 million years when dinosaurs also roamed the planet.  They are the only living marsupials in North America.  The first known usage of their name occurred in 1610 literature for Jamestown, Virginia.  “There are…Apossouns, in shape like pigges.”  The word opossum comes from the Algonquian Indian language meaning “white animal.”

 

Opossums are solitary nocturnal animals that are as common in the suburbs as they are in rural areas.  About the size of a housecat, they have a naked prehensile (grasping) tail, naked ears and opposable “thumbs” on their rear feet.  When they hiss or growl, they show their 50 sharp teeth.  No other land mammal has so many teeth.  They have very poor eyesight but a keen sense of hearing to help avoid predators, and an even keener sense of smell to aid in finding food.

 

They seem to eat anything.  Favorite foods include insects, snails, rodents, eggs, snakes, frogs, crayfish, fruit, berries, and carrion.  While foraging for food they travel an erratic path, changing directions every few steps and constantly poking at objects on the ground, testing everything as a possible food source.

 

Opossums are prolific breeders.  Mating season extends from January to July, with 2 litters produced annually.  After a gestation period of only about 12 days, more than a dozen honeybee-sized young are produced.  The blind embryo-like babies immediately crawl unaided into the mother’s abdominal pouch where they attach themselves to one of her 13 nipples.  Those that do not find a nipple soon perish.  Shortly after a baby begins to nurse, the nipple swells and completely fills its mouth so tightly that the baby becomes firmly attached to the mother. It will stay attached for the next 2 months.  As they grow and can no longer fit in the pouch, they will then clutch the mother’s fur and ride on her back as she hunts for food.  The young are independent and on their own at 3 to 4 months.

 

An injured or threatened opossum will pretend it is dead or “play possum.”  It will go into a near coma and its breathing will become almost undetectable.  It lies on its side with mouth and eyes partially open, tongue hanging out, and often emits a greenish fluid from its anus with an odor that is putrid to most predators.  When danger passes it will get up and meander away.

 

Opossums have a relatively short lifespan, especially for their size and metabolic rate.  Their average lifespan in the wild is only about 2 years.  They are preyed on by many species of animals, including coyotes, foxes, large hawks and owls.  As scavengers, they frequently hunt along highways for garbage and road kill where they frequently fall victim to that ultimate predator, the automobile.

 

Contact Gayle at her website for nest boxes at www.woodlandhabitat.com or gaylepille@yahoo.com

 

The Spring Peepers are a Peepin'

They are tree frogs, but are usually found at ground level.  Their “peep” is deafening and sounds like sleigh bells - only louder.  In the northeast they are referred to as “pinkletinks” or “tinkletoes.”  To us though, they’re simply called Spring Peepers, and the Peepers are out in force.

 

Spring Peepers are the most widely distributed chorus frogs in Kentucky.  They are also one of our smallest frogs, about the size of a nickel.  Like all tree frogs, they have sticky round toe-pads they use to climb and cling to twigs and bark.  They have an irregular “X” on their back, hence their scientific name, Pseudacris crucifer.  They are generally light brown in color, though they do have color-changing abilities.  Depending on their surroundings, they can darken or lighten their skin color to resemble their background.

Their call is a welcome sound, as it’s a sure sign that spring has arrived.

 

Peepers are found in woodland pools and ponds, preferably without fish to prey on their eggs, tadpoles and adults.  Males gather in these small pools by the hundreds, or even thousands.  Their chorus begins the first warm evenings of the season, starting in late February into late summer.  Only the male frogs call, averaging a peep per second.  They usually call in trios, with the lowest-pitched male starting the competition.  Those that sing the loudest and fastest are most likely to attract mates.  These nocturnal amphibians can be heard loud and clear up to a half-mile away.

 

The reason they can call so loudly is because of large “vocal sacs” under their chins.  They pump these sacs full of air until they look like a balloon, and then discharge the air with a powerful “peep.”  The easiest way to see Peepers is to look for these shiny oversized sacs, which nearly double their size when inflated.

 

After mating Peepers lay up to 1,200 eggs in clumps attached to twigs and aquatic vegetation.  The eggs may hatch in only a few days or up to two weeks, depending on temperatures.  Within two to three months, young tadpoles are transformed into young frogs and leave the pond.  They then take to the woodlands where they serve the useful purpose of hunting insects.

 

Peepers hibernate on land.  Like all amphibians they are cold-blooded and their body temperatures change in accordance with outside temperatures.  When temperatures drop below freezing, body parts also freeze and actually form ice crystals.  Vital organs though, as heart and lungs, are protected by a natural anti-freeze (glucose) they produce in their livers.

 

A variety of animals prey on Spring Peepers, including snakes, skunks and even larger frogs.  However, nothing is more devastating to a pond full of Peepers than a pesticide or herbicide spray.  A single application of either can wipe out an entire pond population of these fascinating tree frogs.  These welcome harbingers of spring are way too cool to let that happen.

 

Nov 15, 2008

Mourning Doves Saved From Hurricane Ike

We’ll all remember Hurricane Ike for all of its damage in Northern Kentucky; trees uprooted, split and cracked in half, huge limbs broken, and roofs blown completely off.  But Bob and Mary Terrell of Cold Springs will remember Ike for the lives they saved.

 

“About 15 to 20 of us were sitting on the porch when the storm hit,” said Mary (Highland Cemetery’s longtime office manager).  “The winds blew a neighbor’s trampoline into a tree and plastic chairs were flying through the air.  Then we saw a dove’s nest we’ve been observing get blown out of our Maple tree.  The nest had three babies only a few days old.  Two babies dropped just below to the ground, while the nest and another baby blew up the street.”

 

Things did not look good and Bob and Mary were at a loss for what to do.  “The one baby was blown up the sidewalk about 150-feet from the tree and was lying on its side,” said Mary.  “So we just got all three babies and laid them in the yard together.  It was amazing.  The mother stayed with those babies all night long on the ground, keeping them warm and protected.  She never left them.”

 

By the next morning the baby blown the farthest was already dead and the Terrells wanted to help the two surviving chicks.  “What are we going to do with these babies,” said Bob.  Like any good mother, Mary creatively improvised.  She went inside and got an Easter basket (decorations included) and lined it with leaves.  They put the babies in the Easter basket and securely hung it just below where the nest was. 

 

Life was good again.  “After they were in the Easter basket both parents continued to feed the babies,” said Mary.  “It was so neat and we had such a good time watching them.  All of the neighbors watched too.  We would always see one of the parents in the basket with the babies.”

 

Twelve days after the storm the baby doves fledged and left their decorative homestead, though Bob and Mary still see their adopted babies regularly.  “Every night just before dark the whole family flies into the Maple tree to roost,” said Mary.  “We love seeing them again.”

 

It’s no wonder that the Terrell’s doves lost their nest to the storm, as Mourning Doves make very flimsy nests that frequently succumb to severe weather.  The male chooses the nest site while the female builds the nest.  He gathers twigs, lands on her back and gives her the nest material while she takes it and weaves it into the nest.

 

Mourning Doves almost always lay just two eggs.  The Terrell’s nest of three was most probably the result of another female laying an extra egg in the nest.  They rarely leave the nest unattended and are very prolific, with up to six clutches per year.  As Bob and Mary can attest, Mourning Doves are very devoted parents.

Incubation lasts about two weeks. The helpless young are called squabs and are fed crop milk for the first few days, which is gradually augmented by seeds.  Two weeks after hatching, the squabs will fledge and be cared for by the father for another two weeks.  By the time the young are only 85 days old, they too will be able to mate and have young of their own.

 

Mourning Doves eat seeds almost exclusively and are a common sight at our feeders, with a preference for corn, millet, safflower and sunflower.  They are one of the most abundant birds in the U.S., and have the longest breeding season.  They form strong pair bonds and mate for life, though they will find new partners if something happens to a mate. 

 

They are called Mourning Doves because of their sad and “mournful” call.    Their call, which is often mistaken for an owl’s, sounds like coah cooo cooo coo.  Nineteenth century naturalist John James Audubon saw Mourning Doves as harbingers of spring…”The Dove announces the approach of spring.  Nay, she does more: --she forces us to forget the chilling blasts of winter, by the soft and melancholy sound of her cooing.”

 

It’s hard telling the effects of Hurricane Ike on wildlife in our area alone.  Fortunately though for the Terrells, they didn’t have to mourn the fate of their doves.  When Mary told 17-year old granddaughter Rachel about rescuing the doves, Rachel replied,

“Mo Maw that’s the neatest story.”

 

Contact Gayle at her website for nest boxes at www.woodlandhabitat.com or yourtown@fuse.net

 

 

 

 

 

 

 

 

 

 

 

 

Northern Cardinals.Up Close and Personal with the Bird Lady of Ft. Wright

“If you’d have told me I would be watching birds six months ago, I would have told you that’s crazy,” said Shelly Sandfoss of Sentinel Point in Ft. Wright.  Now husband Jeff refers to Shelly as the “Bird Lady.”  It all came about because of an artificial Christmas tree.

 

“I’ve always had a wreath on the front door,” said Shelly.  “I did not put a wreath up this year because finches always built a nest in the wreath and would then fly into the house when the door was opened.  This year I just left my artificial evergreen on the front porch for decoration.”

 

To Shelly’s great surprise, a different bird nested on her front porch.  “I noticed this bird and thought Oh My Gosh, there’s no wreath on the door so they decided to use the Christmas tree,” said Shelly.  It turns out that Shelly dissuaded finches from nesting on her porch wreath, and in turn persuaded Northern Cardinals to nest in her imitation Christmas tree.

 

Northern Cardinals (Cardinalis cardinalis) are named for the Cardinals of the Roman Catholic Church who wear distinctive red robes and caps.  With its striking good looks it maintains the record for popularity as a state bird, holding that title in seven states (including Kentucky, Ohio and Indiana).  

 

Originally birds of the southeast, cardinals have expanded their range over the past 100 years.  In 1886 cardinals were found only occasionally north of the Ohio River.  Now they can be found as far north as Maine and Southern Canada.  Habitat changes and our joy of bird feeding have served the cardinal well.  Interestingly, males with a brighter red color feed at higher rates and have greater reproductive success than duller colored males.  Cardinals are non-migratory and usually live within a mile of where they were born.

 

The female builds a cup nest in a well-concealed shrub or low tree; made of thin twigs, bark strips and grasses.  “She built the nest in less than 36 hours, a beautiful constructed nest,” said Shelly.  “She started by making a top ring, laying that out first, and then constructed the inside.  She built it totally backyards of how I think a nest should be built.”  Mama cardinal knew what she was doing though.  Two days after the nest was built she laid 4 blue-green eggs with brown speckles.

 

An avid photographer, Shelly was able to capture it all on camera out her front window.  “They were textbook cardinals, right on schedule,” said Shelly.  “Only three of the four eggs hatched.  They incubated their eggs for 12 days, and the young were in the nest another 12 days before fledging.  Newborns sleep a lot.  That first week they’re not eating as much, they’re sleeping a lot and Mom is keeping them warm.  On day four they opened their eyes.”

 

 

“After about a week she’s constantly feeding them,” continued Shelly.  “She’s feeding them at least every half-hour.  Mom eats lots of seed from the feeder, especially sunflower.  But she does not feed the babies seed, only insects and caterpillars.  When she’s coming in to feed, she lands in a tree about 15-feet away.  She checks her surroundings first to make sure the coast is clear.  She cheeps to them, they recognize her call and cheep back and get ready to be fed.” 

 

“One morning I went out to get the paper at 8:00 am and one was missing,” said Shelly.  “I immediately thought the cat up the street got one.  Then I realized it was day-12, the day to fledge.”  Shelly watched the events unfold for the next 4 hours.  “The two remaining chicks would practice lifting their wings while the mother called to them.  By 9:30 am, after getting up the nerve and practicing its takeoff, the next one flew from a branch on the Christmas tree to a Japanese maple.  Two hours later, while also taking care of the two other babies on the ground, the mother finally coaxed the third baby into flying. By nighttime they had all moved to the back of the house to an evergreen.”

 

One would think that’s the end of a very happy story.  However, to Shelly’s great delight, less than a month later mama cardinal again built a nest in Shelly’s artificial Christmas tree.  With the babies due to fledge around July 10th, Shelly’s watching and photographing as events unfold.  “She built the second nest exactly horizontal to the first nest,” said Shelly.  “Once I laid eyes on her, I knew it was the same female.  When you take hundreds of pictures of a bird, you not only recognize her calls and her stares, but also her markings.”

 

When asked if she was going to keep the artificial Christmas tree on the porch, Shelly replied, “Heck yeah, I’m going to keep that tree out there.  Next to giving birth, this is the coolest thing I’ve ever watched.  I never really had an appreciation for birds because I never saw the circle of life like I have with this mother bird.  It was so cool to watch how the birds communicated, how the mother spent every minute of every day taking care of her babies.” 

 

Shelly, with her excellent photography skills, has further intentions.  “My fourth-grade teacher at St. Agnes, Pam Summe, is now back teaching fourth-grade at St. Agnes again,” said Shelly.  “Sometime this summer we’ll write a children’s story book using these pictures that we’d like to have published.”

 

Contact Gayle at her website for nest boxes at www.woodlandhabitat.com or yourtown@fuse.net

 

Kentucky Bananas - They're Ripe for Picking

Kentucky Bananas are the largest edible native tree fruit in the U.S., sometimes weighing more than a pound each.  They were first documented in a 1541 report of the Spanish

de Soto Expedition of the Southeastern U.S., making mention that Native Americans cultivated them east of the Mississippi.  Kentucky Bananas were a favorite chilled dessert of George Washington, and planted by Thomas Jefferson at Monticello.  The Lewis and Clark Expedition depended and sometimes subsisted on them during their travels.  Modern naturalists frequently take to the woods in search of this delectable and nutritious fruit, seeking them out from early September until first frost.

 

Kentucky Banana, or Pawpaw trees (Asimina triloba), are understory trees found in fertile bottomland and upland habitat.  Large patches of these tropical looking trees can be found along our many streams, where they can grow up to 20-feet tall.  A member of the Annonaceae family, it is the only member not confined to the tropics.   Pawpaw trees probably derive their name from the Spanish papaya, whose fruit they resemble.  Pawpaws grow wild in hardwood forests of 26 states, from Florida to southern Canada and as far west as Nebraska.  Native Americans are most likely responsible for extending pawpaws far beyond their original growing range. 

 

It is hard to describe the taste of a pawpaw.  The flavor is truly tropical, resembling a blend of banana, pineapple and mango with a custard-like texture.  They are a good substitute for bananas freshly picked or in any recipe.  Pawpaws are loaded with vitamins, minerals and amino acids, and are most similar to banana in overall nutritional content.  Ripened pawpaws with skin and seeds removed can be pureed and frozen for later use.  They make excellent smoothies.

 

Individual Pawpaw trees do not generally produce large quantities of fruit.  The maroon, upside-down flowers produce a weak fetid or putrid odor, which attracts few pollinators, limiting fruit production.  The insects they do attract are flesh-eating insects, as carrion flies, blow flies, flesh flies and carrion beetles.  These insects are so vital for pollination that many a pawpaw grower places road kill in the pawpaw patch each April when they flower to attract these pollinators to their trees.  They have even been known to hang chicken necks from the trees to get the pollinators closer to the flowers.  Little wonder that pawpaws growing near roadways (with frequent road kill) often times produce more fruit than those in interior woodlands.

 

Pawpaw trees may be the perfect trees for residents of suburban communities, as deer will not eat them.  It’s thought that the stem emits an unpleasant smell when the tree is damaged, causing it to be unpalatable to deer, goats and rabbits.  The fruit though is relished by a wide variety of wildlife, including raccoons, opossum, mice, fox, squirrels, deer and humans.  In 2000, the Pawpaw tree was voted Better Homes and Gardens landscape tree of the year.

In recent years the Pawpaw tree has attracted much interest, especially with organic growers, as this native tree has few pests and is relatively disease free.  And though it has a delicious and nutritious fruit, it has not been cultivated on a large scale, as it does not store well.  Shelf life of tree-ripened fruit stored at room temperature is only a few of days.  With refrigeration, the fruit can be stored for about 3 weeks and can then be allowed to finish ripening at room temperature.  The fruit can frequently be found at local farmer’s markets where they can sell for up to $1.00 each.

 

Nothing though beats the taste of a ripe pawpaw freshly picked off the tree, and they are just now beginning to ripen.  The ripe fruits are easily picked (if you can reach them) by a gentle tug.  Shaking the tree will cause multiple clusters to fall off, but you may want to take cover or wear a helmet.  Nothing like having several one-pound Kentucky Bananas knock you in the noggin’.

 

Contact Gayle at her website for nest boxes at www.woodlandhabitat.com or yourtown @fuse.net

 

 

 

Talkin' Turkey

It’s true.  Turkey was probably served at the first Thanksgiving feast in 1621 (along with goose, duck, grouse, eagle, venison and seal). 

 

And yes, Benjamin Franklin thought the Wild Turkey would be a much better national emblem than the Bald Eagle.  In a letter to his daughter Franklin said, “For my own part I wish the Bald Eagle had not been chosen the Representative of our Country.  He is a Bird of bad moral Character.  He does not get his Living honestly…For the Truth the Turkey is in Comparison a much more respectable Bird, and withal a true original Native of America.  He is besides, though a little vain and silly, a Bird of Courage, and would not hesitate to attack a Grenadier of the British Guards who should presume to invade his Farm Yard with a red Coat on.”

 

Famed 19th century naturalist John James Audubon agreed.  Said Audubon, “Sufffer me kind reader, to say how much I grieve that it (Bald Eagle) should have been selected as the Emblem of my Country.  The opinion of our great Franklin on this subject, as it perfectly coincides with my own...”

 

Wild Turkey’s were abundant when Audubon was exploring our woodlands and painting birds.  Audubon stated, “The unsettled parts of the States of Ohio, Kentucky, Illinois, and Indiana…are the most abundantly supplied with this magnificent bird.”  Unfortunately, by the early 1900’s turkeys were nearly driven to extinction in North America due to over hunting and habitat loss.  And because of hunters, turkeys are the common sight they are today.

 

Kentucky Fish and Wildlife biologist George Wright is the hero of today’s turkey hunters.  His foresight, wisdom and salesmanship brought Wild Turkeys back to Kentucky.  In the mid-1970’s Wright traded deer, especially our big bucks, for turkeys from Mississippi.  And when Missouri wanted river otters, Wright bought otters from Louisiana and traded them for Missouri turkeys.  The rest is history.  More than 230,000 Wild Turkeys now call Kentucky home, and every county in Kentucky allows turkey hunting.

 

If you want to know about Wild Turkeys ask a turkey hunter.  “It’s a blast,” said Mike Hollan of Highland Heights (who is also a manager at Party Town in Florence, for those looking for some Turkey-day spirits).  “Everyone thinks it’s about killing, but it’s about being in nature and seeing what’s going on in nature.”  Mike has hunted turkeys for 15 years, 13 with a gun and 2 with a camera.  The camera adds a new dimension.  “It’s all about witnessing the beauty of nature,” he said.  “I just love doing this, being there, and sharing the wildlife with people who never see this in the wild.”

 

A person can’t just go out and bag a turkey.  “They are the most difficult things I’ve ever hunted,” said Mike.  “They have eyesight like a pair of 10-power binoculars and unbelievable hearing that allows them to accurately pinpoint noises.”  It takes patience and you have to think like a turkey.  “You can’t just sit anywhere and call turkeys,” he continued.  “You have to know where they’re roosting, where their strutting ground is, and get between them and the strut ground.  You have to get out one-hour before daylight and set up decoys to attract them.  It is so much fun to see them interact with the decoys.  Mature male birds will try to run the immature male decoy off.  Hens will go right up to the female decoys and try to interact.”   

 

“Dominant males use young males as sentries,” said Mike.  “After the young males run the gauntlet and the dominant male knows it’s safe, he runs the young males off so he can mate with the females.  He displays and calls a hen to an open sunny area, and then they go to the woods to mate.  After mating, he goes back to the open area, displays and calls again.  He’ll mate with several females.”  The male’s distinctive gobble can be heard up to a mile away.

 

The nest is shallow depression in the ground, surrounded by dense brush, vines, tall grass, or fallen trees.  “They’ll lay one egg per day, and will normally lay 10 to 20 eggs,” said Mike.  The chicks, or poults, are born precocial, and are able to walk and feed themselves within 24 hours of hatching.

 

“Nest robbers are their biggest predators,” said Mike.  “They include skunks, raccoons, foxes, and snakes.  Coyotes can get young birds, but after a few weeks when they can fly, they really have few predators.  When a coyote or something hunts them, they naturally just bust up and spread apart.  When it’s safe, the mother will call them all back.”

 

“You can determine age by the length of their spurs,” Mike said.  “As they get older the spurs get longer and sharper, up to 1 ¾-inches.  The spurs are used to protect their females.  Yearling males, or jakes, have no spurs and only a 2 to 4-inch beard.  Within a year males will get a 9-inch beard and spurs about ½-inch.  Average weight is about 19 to 22 pounds.”

 

Are they good eating?  “You can only eat the breast,” said Mike.  “The legs and wings are too tough from running and flying.  Young birds are best, and if cooked right they are pretty good.  The meat is drier, leaner and tougher than the domestic bird.  Most folks will deep fry or smoke them.  I like them best when deep-fried in peanut oil.”

 

Much of the wildlife we see today is here not because of tree-huggers, but because of hunters.  “Hunters are the big reason we have reintroduced turkeys and other critters like river otters and elk to the state,” said Mike.  “So as a non-hunter, if you want to help wildlife, make a donation to the Department of Fish and Wildlife.”

 

Gobble gobble.

 

 

Jun 9, 2008

Warblers.They're Coming Through

Warblers…They’re Coming Through

 

 

 

He was born to be a “birder.”  He got his first field guide when he was in 3rd grade.  By the time he was nine he wrote his fist book, “Greg Cunningham’s First Book of Birds.”  It was destiny.  Greg continues to be an active bird watcher and all-around naturalist.

 

Greg grew up in Villa Hills and until recently lived in Ft. Mitchell.  Now living in Columbus, he’s on the advisory board of Audubon Ohio, a state organization of the National Audubon Society.  “Our mission is connecting people with nature,” said Greg.  “The Audubon Society is all about nature and wildlife with an emphasis on birds.”

 

Greg recently took a trip to Lake Erie’s Black Swamp area to do a little birding.  “The whole northwest corner of Ohio was at one time a huge swamp called the Great Black Swamp,” said Greg.  “Only remnants remain and they’re critical stopovers for migrating birds to rest and refuel before crossing Lake Erie to Canada.”  The Black Swamp area is also one of the best spots in North America to see the ultimate prize of spring birding…our wood warblers.

 

Many folks go a lifetime without know that warblers even exist.  These small neo-tropical migrants are little more than 5-inches long.  They are extremely colorful and persistent songsters, but you’d be hard pressed to even see one without a good pair of binoculars.  They are THE bird that birders take to the trail for every spring, bragging about their sightings and every bit as enthusiastic as the most fervent fly-fishermen.

 

“The wood warblers are in breeding plumage now with very bright colorations,” said Greg.  In fact, 25 of the 38 eastern warblers have yellow as the dominant color.  They look like flashy winged jewels.

 

Warblers are highly varied with 116 species living in the New World.  The greatest diversity occurs in Central and North America.  Warblers are truly tropical birds that evolved in the lush forests of Central America where the greatest diversity of species are still found.  Fortunately for us, many have developed highly migratory life cycles, nesting across much of the United States and Canada.

 

“It is interesting to note that they only spend a few months in North America to coincide with our long days and plentiful supply of insects,” said Greg.  “Major threats are deforestation of wintering and nesting grounds, excessive use of pesticides, and lack of suitable stop over points along migration routes.” 

 

One warbler seriously impacted by deforestation is the Cerulean warbler.  Their numbers have plummeted by 70% over the last several decades.  “Ceruleans need large, mature, intact woods,” said Greg.  “Fragmentation, strip-mining and logging have really taken a toll on them.”

“The bird that everyone wants to see at Black Swamp is the Kirtland’s warbler because it is so rare,” Greg continued.  “They nest in young jack pines in Michigan’s Upper Peninsula.  Habitat management has really helped increase the numbers of this federally endangered species.”  Kirtland warblers were at an all-time low in 1987 when only 167 birds could be found.  By 2007, with proper habitat management, almost 1,500 males were found singing on their breeding grounds. 

 

First arrivals to Northern Kentucky include Louisiana Waterthrush, Yellow-throated and Yellow-rumped warblers.  Occasionally Yellow-rumped warblers can even be spotted in the dead of winter. 

 

Our smallest warbler is the Northern Parula at 4.5-inches, while the largest is the Yellow-breasted Chat at 7.5-inches.

 

“Only one of our eastern warblers is a cavity nester, the Prothonotary warbler,” said Greg.  “Prothonotaries nest along streams and wetlands and will often use nest boxes.”

Gorgeous birds, males are brilliant yellow-orange with blue-gray wings.

 

One of Greg’s favorite warblers is the American Redstart, a showy and hyperactive bird.  Males are black with striking orange flashes.  In their native Central America they are frequently referred to as “latrine birds” because of their habit of hanging around and eating the many flies attracted to local outhouses.

 

No warbler travels further than does the Blackpoll warbler.  In spring some Blackpolls migrate nearly 8,000 miles one way from as far south as Argentina to Canada and Alaska.  In fall many fly nonstop, over 2,000 miles in 3 days over the open waters of the Atlantic, from New England to South America.

 

True to their name, Prairie warblers can be found in open areas, while Pine warblers are usually found amongst pine trees.  Not so true to their name, Tennessee and Nashville warblers were named for the locations they were originally found and identified during migration, not necessarily where they nest or spend time otherwise.

 

The most widely distributed warbler is the Yellow warbler, with the Common Yellowthroat running a close second.  Both are spectacular looking birds and occur nearly over the entire continent.

 

Unfortunately, since Europeans have colonized the continent, seven North American birds have gone extinct.  One victim is the Bachman’s warbler, a beautiful black and yellow bird.  Like the Ivory-billed woodpecker, Bachman’s bred in the old-growth swamp forests of the southeastern U.S.  Forest and bird are now gone.

 

 

 

 

 

Some warblers are even hybrids.  The Brewster’s warbler is a cross between the Blue-winged and Golden-winged warbler.  While the Lawrence’s warbler is a cross between a
Brewster’s and Golden-winged or Blue-winged warbler.  And believe it or not, Cincinnati has its own warbler, the Cincinnati warbler.  Only two specimens have ever been collected of this rare hybrid of a Kentucky warbler and Blue-winged warbler, once in 1880 and again in 1948. 

 

Is there a consistent favorite warbler?  “If there’s a favorite for most it’s probably the Blackburnian warbler,” said Greg.  “It is magnificent with its flame-orange throat and black and orange head.”

 

During the month of May warblers can be seen just about anywhere.  It’s just a matter of grabbing the binoculars and looking up to see these tropical visitors.  They are well worth the view.

 

Contact Gayle at her website for nest boxes at www.woodlandhabitat.com or at yourtown@fuse.net