Sunday, January 4, 2009

A Very Rare Fern

Along with Jarel Hilton and Dave Minney, I participated in the fifth Hocking Hills Christmas Bird Count. We found lots of birds, including White-winged Crossbills, Pine Siskins, Red-breasted Nuthatch, and Hermit Thrush. This count is really excellent, and you may wish to put it on your radar screen for 2010.

Fortunately for me, Dave and Jarel are great all-around naturalists and general biodiversiasts (I have coined a new word!). And it was much to our pleasure and good fortune that I realized that one of Ohio's only two stations for the incredibly rare Appalachian Filmy Fern, Trichomanes boschianum, happened to be in our assigned area.

This semi-subterranean beauty was a "life fern" for both of them, and I was most curious to see what it looked like in winter, so we detoured over to the top secret locale where it grows. Not all was naught on the ornithological front in regards to this detour, either - upon exiting the car, Jarel spotted a female Sharp-shinned Hawk high overhead. These gorgeous and savage little raptors are easily enough missed on CBC's.

The sandstone alcove where Appalachian Filmy Fern grows. A small patch of this strange plant hangs from the ceiling in the deepest shadows of the recess, where sunlight never strikes and its feet remain damp due to a constant seepage.

We move in closer, our visibility aided by the flash of my Panasonic. Filmy Fern grows in tight clumps, and each frond is but four inches or so in length. One would think that with the abundance of sandstone outcrops and attendant grottoes such as above, this fern would be in numerous locales. Such is not the case. Botanists are no fools, and a great many of these sorts of places have been searched, to no avail. Just last year - or maybe the year prior - one other small population was discovered (really rediscovered) a few miles away. That's it. And this is why I can't divulge the exact location, other than to say Hocking County. But now that you've gotten a taste for the habitat, perhaps you'll go on to find some other stations for Appalachian Filmy Fern.
Here's the total North American range of Trichomanes boschianum. Twelve states, and it is endangered or threatened in six of them. It is also found locally in Mexico. Trichomanes is a tropical genus, with dozens of species elsewhere in the world.

Deep in the subterranean gloom, the delicate fronds scallop the sandstone roof in the manner of a moss. And there is plenty of the latter in the damp perennial darkness of these sites, including quite a bit of large showy liverworts. Getting decent photos of filmy fern is challenging; one must get the flash just right to avoid overexposure or underexposure.

Up close, the "filmy" part of the name makes sense. The tissue is very thin and flimsy; practically like rice paper. Appalachian Filmy Fern leads a tenuous existence here at the absolute northern reaches of its distribution. Threats are threefold, at least. If a small grotto like this one is "discovered" and heavily exploited by people clambering about, the fern is likely to be scrubbed right off the ceiling.

Prolonged drought can have ill effects. If poorly understood subterranean aquifers go dry, and the constant seeps that percolate into filmy fern habitat disappear, so will the fern.

Finally, extreme and prolonged cold snaps can whack filmy fern colonies, perhaps permanently. On this last score, the future may be rosier if mean winter temperatures continue to rise.

In an exclusive, here is actual Appalachian Filmy Fern video - maybe the first on the 'net! You may notice that the company from whence I downloaded this video software wants me to but their goods - no!

Thursday, January 1, 2009

A Foxy Squirrel

It's New Year's Day, and predictably, the rabid - or is that avid - listers are feverishly ticking birds. Like racing Greyhounds released from the gate, birder-listers launch into forest and field first thing at the dawn of each new year, darting about notching marks on their checklist.

Cool.

But why isn't anyone out there racking up a Big Mammal Year? This would be different; out of the box if you will.

If you embark on this furry quest, you will certainly want to add my personal fav, the Fox Squirrel, Sciurus niger.

Dashing chap, eh? Those that live in regions that don't have Fox Squirrels are somewhat deprived. These giant orange-tinted mega-climbers are about as good-looking as it is possible to be and still remain a squirrel. Climbers extraordinaire, they nonetheless are rather Woodchuck-like in that they spend loads of time on the ground. Much more than the Eastern Gray Squirrel, our other large tree squirrel in this neck of the woods.

Bold and inquisitive, this shot was taken seconds before the squirrel leapt wildly at me, attaching to my neck and attempting to sever my jugular. Just kidding.

Although, compared to Gray Squirrels, these are quite the burly bruisers. Think Arnold as opposed to Richard Simmons. A whopper fox stuffed on a diet rich in acorns can dent the scale at nearly 2.5 pounds.

I was subjected to a few guffaws for taking this snap. We were on a birding expedition, you see, and there was precious little time to devote to orange-bellied brushtails like this one. Speaking of tails, like at the leaf-sweeper on this thing! Daniel Boone would have been proud to tie that to his cap.

But Daniel probably didn't see nearly as many Fox Squirrels as we do today. They are mammals of open country and scattered woodlots, and have spread eastward and proliferated following the opening up of the original eastern deciduous forest that blanketed much of the Ohio Country.

So, should yet another Big Year of birds bore you, try a MBY (Mammal Big Year). It'll be much more challenging, although adding the "Stump-eared Squirrel" - an abomination of a nickname - shouldn't be too hard.

Sunday, December 28, 2008

White-winged Crossbills

Yesterday was the Mohican Christmas Bird Count, and I went along for the ride. Our 15-mile diameter circle encompasses some of the most beautiful terrain in the central Ohio area, with the centerpiece being Mohican State Forest.

Many good birds were found, and at our lunchtime get-together, 76 species were reported with nearly all teams checking in. I'd think the count broke 80, but I haven't yet heard a final tally. Noteworthy and exciting were White-winged Crossbills, the biggest celebrity among this year's crop of winter finches. Twenty of them flew over our heads at lunch, and small roving flocks were seen elsewhere for a couple dozen birds in all.

Mohican State Forest, view from the top of the fire tower. I'm really glad that they've fixed this structure up and allow the intrepid to climb to the top. A commanding vista can be had, and in this photo we're looking in the direction of the Clear Fork Gorge - the heart of this 5,000-acre forest.

After hearing a report from Robert Hershberger's team that some cooperative White-winged Crossbills (henceforth WWXB) were seen at the gorge overlook, we headed there right after lunch. My team members Cheryl Harner and Marc Nolls pose next to the Eastern Hemlock, Tsuga canadensis, that was the site of great WWXB revelry only minutes before. A gang of two dozen descended on this tree and staged quite a show, twittering, seed-eating, clambering about like little parrots, and engaging in the odd brief tussle. All of the green trees in the backdrop are hemlock, which is abundant in the gorge. Tons of crossbill fodder here.

Two males, resplendent in coats of salmon-pink set off by bold white wing bars, search the hemlock for booty. Most of the time, the pack members feverishly destroyed cones, seeking the tiny seeds that fire their engines. Allegedly, a motivated crossbill at full tilt can consume 3,000 conifer seeds in a hard day's work. That means that this pack must have taken several hundred seeds from this hemlock in their short visit.

I had a hard time managing any real great shots due to the light, so I borrowed one of Dr. Bernie Master's wonderful efforts from earlier this month. His shot shows a female cracking into some ripe hemlock cones. Pay attention to the cone she is dissecting, and the one in the middle of the two behind her. Mmmm - very good! Note how the scales are separating and spreading outward, indicating ripe fruit and easy pickings. The other two cones still have the scales tightly appressed, indicating a higher moisture content and probably seeds that are not quite ripe. Plus, these greener cones are probably a heck of a lot harder to get into. I suspect crossbills instantly and accurately size up the ripeness of a cone crop as soon as they alight.

Eastern Hemlock cones are tiny and delicate - well-suited for the rather small bills of WWXB's. Note that the foliage of this species of hemlock has two conspicuous white lines running the length of the leaves on the underside, a good identification characteristic. These cones are not fully mature and would likely be shunned by foraging crossbills, I suspect.

Here I've largely simulated what a crossbill does much faster and more efficiently than I could hope to. These are the cone scales, which must be removed to access the seed, which is what they are after. You can see a seed in the scale on the far right, near the base. Feeding WWXB's are often remarkably quiet, only emitting soft twitters. Sometimes all one hears, if they listen closely, are the cracking sounds of cones being violated, accompanied by the sight of little brown scales fluttering softly earthward. Once the flock takes to the air, they don't shut up, though.

Eastern Hemlock seeds, separated from the chaff. It can take as many as 70,000 of them to make a pound. When the small size of the prey is known, one can understand why crossbills have become so efficient at withdrawing the seeds from the cones. If it is true that an industrious WWXB can eat 3,000 of these in one day, it might take the bird over three weeks to consume a pound. Of course, a pound of hemlock seed would make quite a pile.

An example of the disparity in cones among different conifers. The tiny cones up top are from the hemlock, and the whoppers are those of Colorado Blue Spruce, Picea pungens. There are several dozen native conifers in North America, and shapes and sizes of cones vary tremendously. It is not hard to see why Red Crossbills, which typically manage cone sizes larger than those preferred by WWXB, are actively evolving different bill morphology to better exploit different species of cones. Why aren't White-winged Crossbills in a similar evolutionary race? I don't know.

Thursday, December 25, 2008

Pigeons

November 19th was a great day to be birding along the cold, blustery Lake Erie shoreline in the Cleveland region. Massive packs of Red-breasted Mergansers created the appearance of low-lying, fast-moving storm clouds scudding just above the horizon. Bouyant squeaking buzzy throngs of Bonaparte's Gulls swirled in the harbors, members of the gang stooping occasionally to deftly snag an emerald shiner or some other piscine treat. Among their ranks we spotted a rarity: Little Gull, jumping out from afar due to its sooty charcoal underwings.

And there were other great finds. Pomarine Jaeger, a falcon of the gull world and inveterate kleptoparasite, riling the Laridians to no end when it enters the scene.

Two insanely tame Purple Sandpipers, bumbling about icy, moss-cloaked limestone boulders of riprap, literally at our feet. Both Black and Surf Scoters, bulbous-billed clam-crackers, a small flock of which moored themselves over a zebra mussel encrusted reef. Above the scoters, in a backyard on the bluff, was an entirely unexpected Eastern Phoebe.

Of course, the day started auspicuously enough when a Red Crossbill flew directly over my head as I waited for birding companions in the parking lot of Mentor Headlands.

But it's the Rock Pigeon I want to mention. I like them. Thus, when we stopped in at Cleveland's Edgewater Park, hoping for a grass-grazing Brant, I was delighted by the perk of fantastic pigeon photo ops. There they were, intermixed by the dozen with scads of Ring-billed Gulls, hoping for a handout. And many Edgewater visitors oblige them, but not me. I just shot photos of the beautiful birds in all their crazy color variations.

Pigeons are much-maligned, but are not really worthy recipients of our abuse. Sure, they aren't native, but we brought them here. And unlike House Sparrows or European Starlings, they do very little in terms of causing ecological damage or harming native birds. Large congregations can damage man-made property and occasionally be vectors of disease, but you know what they say about paybacks.

Look at all of the cool color variations in this mob. The pigeons with smooth gray bodies, two dark wingbars, and a dark head are the classic wild phenotype, known as blue-bars. But people have been fooling with pigeons for a long time, crossing them to produce other color forms, leading to a wild hodgepodge of forms. Dead center in the above photo is a gorgeous piebald bird, and others show dominant cinnamons, blacks, varied whites, and grays in a dazzlingly mad varied array.

Rock Pigeons have served science well. By conducting endocrinology studies with pigeons, the pituitary hormone prolactin was discovered. Scads of studies have been conducted on their flight mechanics, orientation, and color genetics. The literature spawned by the lowly pigeon could fill a small library, probably.

If I was to be a bird, I would have to give the Rock Pigeon some consideration. Mainly for their fantastic aerial prowess. If you've not done so, watch a flock on the wing sometime. Coursing high above the city, they meld together as one, performing elegant high-speed jigs and jags, flowing through the sky with a grace that few other birds manage. Breeders have honed these flying skills, creating amazingly adept aerialists such as the "rollers". CLICK HERE to watch the wacky antics of this form. I GUARANTEE you will be impressed.

Pigeon fanciers have long recognized the superb aeronautics of pigeons, and for centuries have raised birds for the joy of flying them. Keeping pigeons was, and probably still is, popular in the most urban of buroughs, like Brooklyn, NY. Fancy coops were kept on the rooftops high above city streets, and the pigeons were regularly liberated to course far and wide over the concrete jungles, the coteries always returning to their lofts.


Stunning blue-bar. What's not to like? If he were as rare as, say, a Pomarine Jaeger or Purple Sandpiper, we'd all be flabbergasted at the sight of this pigeon. Many an ooh and awe would be exchanged amongst the birders as we commented over the elegant grays tinged with coppery purples, the beautifully robust shape, and the waxy-white ceres.

One last commentary on the pigeons' contribution to mankind; one that is not so well known.

In the heat of World Wars I and II (and previous conflicts), prompt passage of intelligence between frontline fighting and Allied command behind the lines was problematic. Electronic communications were nowhere near as advanced as today, and it was quickly discovered that radio messages could easily be intercepted.

Enter the pigeon. "War Pigeons" were widely used as messengers, transporting documents over and through some of the fiercest fighting. Tiny scrolls or microfilm were attached to the pigeons' legs, and off they were sent to deliver intelligence to the commanders. The UK alone deployed some quarter-million pigeons during WW II, and some of these birds were awarded medals of valor.

Rightly so; they faced grave danger. Many were shot from the sky, as the enemy knew what their mission was. For a while, the Germans sicced trained Peregrine Falcons on soldier-pigeons. This ploy was abandoned as it was soon realized that the falcons failed to distinguish between German pigeons (they used them, too) and those of the other side.

Some estimates claim that war pigeons saved the lives of thousands of Allied soldiers in the two world wars. Probably the most famous of the pigeons in battle was Cher Ami. This bird is well worth reading about, and below is a beautiful summary of her most famous act of heroism, taken directly from the Home of Heroes website:

Probably the most famous of all the carrier pigeons was one named Cher Ami, two French words meaning "Dear Friend". Cher Ami spent several months on the front lines during the Fall of 1918. He flew 12 important missions to deliver messages. Perhaps the most important was the message he carried on October 4, 1918.

Mr. Charles Whittlesey was a lawyer in New York, but when the United States called for soldiers to help France regain its freedom, Whittlesey joined the Army and went to Europe to help. He was made the commander of a battalion of soldiers in the 77th Infantry Division, known as "The Liberty Division" because most of the men came from New York and wore a bright blue patch on their shoulders that had on it the STATUE OF LIBERTY.

On October 3, 1918 Major Whittlesey and more than 500 men were trapped in a small depression on the side of the hill. Surrounded by enemy soldiers, many were killed and wounded in the first day. By the second day only a little more than 200 men were still alive or unwounded.

Major Whittlesey sent out several pigeons to tell his commanders where he was, and how bad the trap was. The next afternoon he had only one pigeon left, Cher Ami.

During the afternoon the American Artillery tried to send some protection by firing hundreds of big artillery rounds into the ravine where the Germans surrounded Major Whittlesey and his men. Unfortunately, the American commanders didn't know exactly where the American soldiers were, and started dropping the big shells right on top of them. It was a horrible situation that might have resulted in Major Whittlesey and all his men getting killed--by their own army.

Major Whittlesey called for his last pigeon, Cher Ami. He wrote a quick and simple note, telling the men who directed the artillery guns where the Americans were located and asking them to stop. The note that was put in the canister on Cher Ami's left leg simply said:
"We are along the road parallel to 276.4."Our own artillery is dropping a barrage directly on us."For heaven's sake, stop it."

As Cher Ami tried to fly back home, the Germans saw him rising out of the brush and opened fire. For several minutes, bullets zipped through the air all around him. For a minute it looked like the little pigeon was going to fall, that he wasn't going to make it. The doomed American infantrymen were crushed, their last hope was plummeting to earth against a very heavy attack from German bullets.

Somehow Cher Ami managed to spread his wings and start climbing again, higher and higher beyond the range of the enemy guns. The little bird flew 25 miles in only 25 minutes to deliver his message. The shelling stopped, and more than 200 American lives were saved...all because the little bird would never quit trying.

On his last mission, Cher Ami was badly wounded. When he finally reached his coop, he could fly no longer, and the soldier that answered the sound of the bell found the little bird laying on his back, covered in blood. He had been blinded in one eye, and a bullet had hit his breastbone, making a hole the size of a quarter. From that awful hole, hanging by just a few tendons, was the almost severed leg of the brave little bird. Attached to that leg was a silver canister, with the all-important message. Once again, Cher Ami wouldn't quit until he had finished his job.

Cher Ami became the hero of the 77th Infantry Division, and the medics worked long and hard to patch him up. When the French soldiers that the Americans were fighting to help learned they story of Cher Ami's bravery and determination, they gave him one of their own country's great honors. Cher Ami, the brave carrier pigeon was presented a medal called the French Croix de guerre with a palm leaf.

Though the dedicated medics saved Cher Ami's life, they couldn't save his leg. The men of the Division were careful to take care of the little bird that had saved 200 of their friends, and even carved a small wooden leg for him. When Cher Ami was well enough to travel, the little one-legged hero was put on a boat to the United States. The commander of all of the United States Army, the great General John J. Pershing, personally saw Cher Ami off as he departed France.
Back in the United States the story of Cher Ami was told again and again. The little bird was in the newspapers, magazines, and it seemed that everyone knew his name. He became one of the most famous heroes of World War I.

So, next time you have the opportunity to admire a pigeon, or better yet, a group of them, consider what they've done for us. Not too many species of birds can lay claim to the important contributions to humankind that pigeons have made.

Sunday, December 21, 2008

Baltimore Oriole goes Brrrr!

Today, I saw the startling orange and black blaze of Lord Baltimore's colors in the form of this gorgeous Neotropical blackbird. The date is December 21, the temperature was hovering around 25, and Arctic blasts of frigid air made conditions seem far colder than that.

And there was the gorgeous adult male Baltimore Oriole, busily cramming bits of frozen pineapple, suet, and other assorted fare into its gaping maw at the feeders of Becky Schmitt, in Worthington, Ohio. A far cry from where most of this oriole's brethren are right now.

Not a typical sight for late December in Ohio, but by no means unprecedented. This is at least the 30th winter record for Baltimore Oriole. Yep, these are the tough guys. They don't need no pina coladas by the pool in sunny tropical Costa Rica, whiling away the winter in chaise lounges. And I still hope this oriole feels that way after tonight, when low temperatures will dip to 7 degrees.

Becky provides an ambitious culinary palette for orioles of discerning tastes. Here, our guy samples the Chunked Pineapple in Cage. He like. After that, the second course was Suet with Mixed Seed Imbedded, and for dessert it was on to Sunflowers Lightly Crisped and Dry. Let's hope this diet supercharges the oriole for some extremely frosty nights ahead.

A real showstopper by any standard. Incredibly, Becky had a first-year male visiting these same feeders last winter, and I would think that this is the same bird all grown up. If so, a real glutton for punishment, this one.

Adult male Baltimore Oriole, on the grounds of the Buena Vista Hotel in San Jose, Costa Rica, February 1st, 2008. I couldn't resist snapping this photo of one of "our" birds down on its tropical wintering haunts. I am not going to show this blog to Becky's oriole, as it would not be kind. Especially with the upcoming temperatures that he is going to experience.
I hope he does well, and thanks to Becky for bringing this great find to light, and taking such good care of him!

Saturday, December 20, 2008

Pine Warblers and Short-eared Owls

The above species are not normally considered in the same sentence, at least hereabouts, but I saw both today. It was the Beaver Christmas Bird Count today - 18th year, I believe - which takes place around Jackson, Ohio, in parts of Jackson and Pike counties and has ably been compiled by Tom Bain since its inception. I do a section just north of Jackson, and it is very rural and full of interesting habitats. Today, Edie Miller was along and we had plenty of good birds.

Driving by a small creek in a rather scruffy area, I heard the distinctive chip of an Eastern Phoebe, and we stopped to track the bird down. These are by far our hardiest flycatchers, and regularly persist well into December in southern Ohio if conditions remain even halfway moderate. They'll even attempt to overwinter if possible.

McCune Cemetery, a small burial ground carved out high on an isolated oak ridgetop. Such cemeteries are often full of interesting and valuable native plants, and that means more birds, as we shall see.

We were delighted to see not one, but three Pine Warblers in the cemetery. This is one tough warbler and overwinters regularly in southern Ohio - probably the northern limits of its consistent winter range in this region.

Pine Warblers are probably our only warbler that consistently includes seeds as a dietary staple. And I noticed that one of the dominant plants in the cemetery was a panic grass (Dicanthelium). These native grasses are an enormous source of seeds for songbirds, and that's what the Pine Warblers were feeding upon.

So were Eastern Bluebirds. A flurry of about two dozen roared into the cemetery, and spent most of ther time on the ground wolfing down panic grass seeds. The male above is rather odd, and caught my eye. The chestnut of the breast extended around his neck, forming a beautiful collar. Might remind one of a Western Bluebird.

But he's got the nice chestnut throat of an Eastern, along with all of the other characters.

On my way home, I stopped at the massive Charlie's Pond grasslands. Details and directions can be found here. There were Northern Harriers galore, and this beautiful Short-eared Owl popped up on this sign and posed. One other owl was flapping about, and I'm sure there are more. This is a great spot to visit in the winter, if you are into raptor admiration.

Excuse the less than stellar shot, but it was nearly dark when I took this. There are something like 18 Ring-necked Pheasants visible in this photo, and at one point I could count 36 at one time. All told, I saw at least 50 in the area. While some may dismiss ring-necks as non-native and inconsequential, they are incredibly beautiful, especially the roosters. And pheasants are often a driving force to stimulate the creation or restoration of grasslands, and that benefits lots of native species, like the Short-eared Owl.

Wednesday, December 17, 2008

Dream Bird

A perennial and favorite topic, whenever serious birders band together, is the NEXT GREAT BIRD. Such chatter reaches the level of a psychosis, really. We all fervently dream of the NEXT BIG ONE, and of course, secretly or not so secretly hope that we are the ones to find it. Rarely happens, though. Once in a while it does, and most of us who have been peeking through the bins long enough have some cool find or finds to claim.

But the one depicted below MAY be the most coveted AYTBSUTMRTITLACORB (as yet to be seen ultra-thrilling mega-rarity that inflames the listserv and cements one's rep bird) for Ohio birders. We're due, and it'll happen eventually. They've been seen everywhere else in the Midwest, it seems.

I know it's first on my list of rub the bottle genie pops out and grants any wish bird.

Have a look




Fork-tailed Flycatcher, Tyrannus savana. It occurs widely in Central and South America, but wanders regularly far to the north. One or at best a few might appear in the States each year, generating lots of excitement. Not only is it rare here, but just have a look at the thing! Who wouldn't want to see this!

This photo kindly provided by Gary Meszaros, one of the country's top nature photographers. Gary resides near Cleveland, but just picked off the Fork-tail on a recent Florida trip. The streamer-tailed beauty was at Pelican Island National Wildlife Refuge, and even made the press. Allegedly this was Roger Tory Peterson's last North American lifer.

Speaking of Gary Meszaros, be sure and check out his galleries of work. He's got some of the finest natural history photos, anywhere. I'm flattered that he agreed to collaborate with me on a book featuring the very best of Ohio's remaining natural areas. It should be out early this spring.

Quick Fork-tailed Flycatcher story. Gas station in San Isidro, Costa Rica, where our birding group had stopped to refuel on a February 2006 trip. Most of the folks are with our group, and the woman in the blue shirt, facing the camera, and giddily stamping about is Jen Sauter. Why?

Because we had just seen a Fork-tail! I had gotten out to stretch, and saw the bird on a distant snag, so we all roared out of the van, and set up a scope right in the parking lot. Not being overly bashful about sharing thrilling birds, we soon had most of the locals present, including the driver of that big rig, queued up for looks at the bird through the scope. They, too, seemed thrilled.

Birds like this are great ambassadors for the feathered crowd.