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Red Kites return to Ireland 23 July 2008

Posted by eatmorecookies in Ireland, Irish birds, Links, birding, birds/nature, environment, life.
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According to this story, Red Kites have been reintroduced to Northern Ireland after an absence of 200 years. There’s a new star in the County Down, apparently.

The Irish have been busy reintroducing other raptors as well. This link includes a photo of the majestic White-tailed Eagle that has been reintroduced in County Kerry. The photo, however, was taken in County Down. I guess it’s time for me to plan another trip to the homeland, and to make sure Down is on the itinerary!

Audubon action on oil exploration 18 July 2008

Posted by eatmorecookies in Links, birding, birds/nature, editorial, environment, life.
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I received the latest installment of the “Audubon Eider eNews” newsletter today, and it had lots of great information on bird conservation in Alaska. The most interesting tidbit was this:

“Will Drilling in the Arctic Refuge Lower Gas Prices?
As the U.S. faces record prices at the pump, President Bush and pro-drilling advocates insist that opening the Arctic Refuge to oil development is the answer. Ironically, the Bush Administration’s own Energy Information Administration (EIA) recently reported that even at peak production in 2027, the oil produced from the Refuge would only reduce the price of a barrel of oil by 78 cents. Increased conservation and use of alternative technologies would yield nearly ten times more savings than what consumers would ever get from drilling in the Arctic Refuge, based on the EIA’s report.”

This is why it simply isn’t worth despoiling the Arctic National Wildlife for the oil it might produce. We are America, dang it! We can and should do better!

For more great updates on conservation issues related to our native birds, check out the “Audubon Action” website.

Chimney Swifts come in to roost on campus 18 July 2008

Posted by eatmorecookies in Chimney Swift, Links, birding, birds/nature, environment, evolution, life.
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Last night I had the rare opportunity to watch Chimney Swifts come in to their evening roost. They’ve provided me with another wildlife mystery, however. Their roost is somewhere on top of a high rise dormitory on the OSU campus, and there ain’t no chimneys up there.

Chimney Swifts are fascinating creatures. Most closely related to hummingbirds, swifts may spend more time on the wing than any other birds. I’ve read that swifts eat, drink, mate, and even sleep on the wing. If that last one is true, then they must get a lot out of little power naps!


Chimney Swift portrait, Powdermill Nature Reserve

Most folks are familiar with swifts - they are pretty conspicuous - but they’re probably often mistaken for swallows or bats. Some folks get the chance to experience swifts up close and personal: occasionally, babies will fall from their chimney nests and be found clinging to the side of a homeowner’s fireplace. But most of us know them simply as twittering little black boomerangs strung through cigars that can do about Mach 3 in a straightaway.

They fly more slowly when coming to roost. Last night right at 9 pm when the full, red moon had just risen in the east, I noticed our resident flock of about 50 swifts circling and twittering over the roof of Kerr Hall. I had seen them do this before, so I figured they must be roosting somewhere on the roof of that building. The roof, however, is flat, and there are no chimneys.

As the minutes passed and the birds continued circling, the little black shapes became harder to discern against the darkening sky. The first stars blinked on around 9:10. Finally, I thought I had an idea where the birds were going, so I posted myself at the best vantage I could find. There! One at a time, birds were dropping from the wheeling flock, holding their stiff wings aloft, and floating like butterflies in an irregular path to their roost. By 9:16, the twittering fell silent as the last swift wafted down into the roost.

My next assignment? Convince the maintenance crew of a college dormitory to let me climb out onto the roof of their 11-story building and try to figure out where these little guys are roosting.

For more information about swifts, check here.

Ontario boreal forest protection - WOO-HOO! 16 July 2008

Posted by eatmorecookies in Links, birding, birds/nature, editorial, environment, life.
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Praise, congratulations, and thanks are to be bestowed on our neighbors to the north today, as Ontario has established an enormous preserve to protect boreal forests. Premiere Dalton McGuinty announced a commitment to protect 55 million acres (225,000 km2) of coniferous forest in northern Ontario. I don’t know yet what that “protection” really means, but it sounds pretty good!

To dig deeper on this story, be sure to check out Jeff Wells’ excellent Boreal Bird Blog.

Update on the Wren Nest 15 July 2008

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Back on June 12th, I posted about a Carolina Wren nest in one of our hanging petunia baskets. On June 25th, one of the last things we did before leaving town was check the nest. We found a nestful of little wrens, just 2 or 3 days from fledging - and no cowbird.

The Great Auk egg 15 July 2008

Posted by eatmorecookies in Great Auk, Links, birding, birds/nature, environment, evolution, life.
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The Great Auk was a large, flightless seabird from the North Atlantic that was hunted to extinction in 1844. The birds were easy to exploit from their remote nesting colonies, where sailors were said to sometimes simply herd the live birds up gangplanks and into their boats. The birds provided a source of fresh meat on long voyages, and were a welcome relief from hard tack. The large eggs were also collected for food, and auk down provided insulation. Once humans developed the ability to reliably sail to nesting colonies of Great Auks, the species was headed down the all-too-familiar path of exploitation that leads to extinction.

Their superficial resemblance to penguins is a wonderful example of convergent evolution, i.e., unrelated species developing through natural selection similar strategies to solve similar problems. In this case, both penguins (order Sphenisciformes) and auks or alcids (order Charadriiformes - this includes auks as well as terns, gulls, plovers, and sandpipers) have evolved the ability to swim rapidly and at depth in ocean water to pursue fish. Through convergent evolution, both groups have developed thick, torpedo-shaped bodies, dense plumage for warmth in cold climates, countershaded coloration (dark above and white below), and reduced wings that can assist in swimming by flapping underwater.

A closer look, however, reveals important differences. For example, auks possess clearly webbed feet, and these probably provide a good deal of propulsion during swimming. The heavy, club-like feet of penguins are generally not used during swimming, as propulsion comes mainly from the flipper-like wings. A penguin’s wings are in fact so modified as flippers for swimming, that they are stiff and bladelike, having lost the ability to fold against the body as do the wings of most other birds. Auk wings are different, in fact all 22 living species are able fliers while all penguins are flightless. Finally, these two groups of seabirds are separated geographically: all auks occur exclusively in the Northern Hemisphere (principally in the far north) and penguins are confined to the Southern (except of course, for the Galapagos Penguin, whose distribution straddles the Equator).

To further add to the confusion between penguins and auks, the word “penguin” is thought to derive from “pinioned” or “pin-winged”. When sailors first encountered the flightless Great Auk with its reduced wings, they described it as a bird who’d had its wings clipped to keep it from flying away. As more and more Europeans explored the southern oceans , they encountered there many black and white “pinioned” seabirds, and they referred to them as they did to the Great Auk - “penguins.” So penguins actually get that name from the history of sailors encountering the flightless Great Auk, and unrelated species from an entirely different hemisphere. Now you know.

But I digress . . .

The reason I’m posting about Great Auks today is that I encountered one recently. Well, sort of, but I was wrong.

While enjoying a great visit with old chum Greg Keller now at Gordon College in Massachusetts, Greg indicated that he had something really cool to show me - something he inherited as part of the College’s natural history collection.

He produced a leaded glass box containing several old eggs.

Only one, that of a Mute Swan, was labeled. The others were fairly easy to identify as ostrich, emu, and rhea, but the last two seemed a bit more interesting. One was not much larger than a chicken egg, and it had a buffy-olive color. Would an oologist from the 19th century have included the egg of a Rhode Island Red in a prized collection like this? It didn’t make sense. Then it hit me - tinamou! Tinamous are roughly chicken-sized and shaped birds from Central and South America that are most closely related to the rheas, ostriches, and emus. Tinamou eggs are beautifully glossy, and this would really have been a treasured specimen for an egg collector.

But the egg that really captured our attention was different. It was an obvious charadriiform egg, based on its pyriform shape and the pattern of uneven dark blotches on a light background. It was however, huge - almost as big as the emu egg in the box. Greg had done some background research based on his hunch that the egg in question was actually that of a Great Auk. All evidence pointed to that being the case. If authentic, this would be the rediscovery of a currently uncatalogued specimen of an extinct species, and a priceless find. It was a thrilling item to behold.


Emu egg (L) and Great Auk egg (R)

Alas, Greg finally had the chance to travel to the Museum of Comparative Zoology at Harvard University, and direct comparison with known eggs confirmed his nagging suspicion that the Great Auk egg in his possession is, in fact, a well-crafted replica.

While our hopes of having encountered a piece of an extinct creature were dashed, I find myself perhaps even more interested in the mystery. Who made this egg, and why? Was there money to be had in producing egg forgeries during the height of the egg collection fad of the 19th century? Was this an honestly produced replica used for display while its authentic antecedent was kept in a more secure location? Had the original owner of the egg been the craftsman who produced it, or had he himself been duped into thinking it was authentic? Where one mystery ends, a new one begins . . .

Birding Plum Island - 45 species on July 3rd 14 July 2008

Posted by eatmorecookies in Links, birding, birds/nature, environment, life.
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On July 3rd, old pal and West Newbury resident Greg Keller and I invested a couple of hours birding Plum Island, MA. The area birders refer to as “Plum Island” is a complex of state, federal, and local management units, with most of the great birding concentrated at the Parker River National Wildlife Refuge.

As expected, we had a great day at Plum Island. I got to see Bobolinks, Willets, Seaside Sparrows, Salt Marsh Sharp-tailed Sparrows - all species I rarely get the chance to enjoy these days. We dipped out on King Rail, unfortunately, but we did well otherwise. Purple Martins were still hanging around their nests, but Tree and Barn swallows were amassing for their journey south. Willets were agitated, indicating that they had young in the vicinity - two of which we saw bobbing in the water in a pool with some ducks. Piping Plovers had several day old young out of the nest, and the adults were giving them a good bit of freedom.

The best find of the day, however, was a flyby Ruff. (more…)

Seabirds in decline 13 July 2008

Posted by eatmorecookies in Links, birding, birds/nature, editorial, environment, evolution, life.
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From overhunting and egg collecting, through the atrocities of the millinery trade and the unintended long-term consequences of DDT, from the introduction of exotic invasive species to nesting sites formerly free of predators and loss of critical nesting habitat from coastal development and the operation of off-road vehicles, from oil spills and inshore water pollution and overfishing, and on through the effects of changing ocean currents and rising sea levels . . .

coastal seabirds are in long-term population decline.

Some of the best studied mixed species colonies in Scotland are apparently in the midst of 15 years of poor reproductive success and colony abandonment. Traditional breeding sites that formerly supported thousands of pairs of various species are now just shadows of their former glory, or have been abandoned altogether. If this was just a Scottish problem it’d be bad enough, but stories like this have been the norm from different regions of the globe for many years. While many seabirds benefit from relatively long lifespans (> 15 years) and populations can generally withstand a few bad years in a row, 15 bad years indicates that something unusual is happening.

Birding Community eBulletin for June 2008 24 June 2008

Posted by eatmorecookies in Links, birding, birds/nature, editorial, environment, life.
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Thanks to Wayne Petersen from Massachusetts Audubon for sending out the latest Birding Community eBulletin, reproduced here in its entirety:

THE BIRDING COMMUNITY E-BULLETIN

June 2008

This Birding Community E-bulletin is being distributed through the generous support of Steiner Binoculars as a service to active and concerned birders, those dedicated to the joys of birding and the protection of birds and their habitats. You can access an archive of past E-bulletins on the website of the National Wildlife Refuge Association (NWRA):

http://www.refugenet.org/birding/birding5.html

and on the birding pages for Steiner Binoculars

http://www.steiner-birding.com/bulletin.html

RARITY FOCUS

There were some wonderful Neotropical birds that appeared along the U.S.-Mexican border in May, several of which could have been highlighted as our rarity of the month. These included a Piratic Flycatcher near Corpus Christi, Texas, for a few days early in the month, and a Tufted Flycatcher that was at Cave Creek Canyon in southeast Arizona, off and on for about two weeks.

Our choice for this month’s rarity, however, is a Wood Sandpiper that entertained hundreds of birders at the Broadkill Beach section of the Prime Hook National Wildlife Refuge, near Milton, Delaware. (more…)

Bird portraits from the Cross Timbers 23 June 2008

Posted by eatmorecookies in Links, birding, birds/nature, environment, evolution, life.
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In the midst of banding waterthrushes last week, we also had the good fortune of catching a couple of other beautiful birds. The first was the Eastern Phoebe, a species that shares riparian forests with waterthrushes. Phoebes advertise their presence early in the spring with their harsh, grating “song” - “FEE-bee! Fee=brrrrrt!” Holding one in the hand reminds me why we call them “tyrant” flycatchers.

Then, after we had decided to make tracks, we went to collect one of the nets and found a female Black-and-White Warbler waiting for us. These little sprites feed like woodpeckers by gleaning prey from bark, but nest like ovenbirds, on the ground in the leaf litter. The male’s song sounds like a squeaky wheel: “wee-see-wee-see-wee-see . . . “