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Posts Tagged ‘Birds’

If your New Year’s resolution, like mine, was to swear off TV in the year 2011, you may have missed this news item.

red-wing blackbird

In memorium  ~5,000 red-winged blackbirds

But my other forms of news media this past weekend were swarming with notices about the thousands of red-winged blackbirds that fell from the sky in the small town of Beebe, Arkansas (coincidentally a town having a people population of 4930). ‘Twas a mystery.

At 11:30 pm New Year’s Eve thousands of dead, dazed or dying birds began dropping from the skies. The next morning within a mile and a half stretch, startled homeowners were finding bird corpses on their roofs, more than several on their lawn and perhaps a dozen on the street asphalt as they backed out the driveway. That’s my version of a bad New Year’s hangover to wake up to.

For several years now and at this time of year, several hundred thousands of red-winged blackbirds have used a wooded area in this town as a nighttime roost. So it seems it is a loss of just a percentage of the population. Nevertheless, I’m sad for the loss of these feathered friends.

A visit by officials to the Arkansas roost found no dead birds there. For this reason (and later autopsies found empty stomachs) poisoning has been ruled out. Autopsies did reveal blunt trauma and internal bleeding with death occurring in mid-air, not from ground impact.

Ornithologists are now speculating—at the time of this posting—that while the birds were roosting, violent weather (such as tornado and/or lighting and/or hail) passed through and took their lives. 

We’re still waiting to learn how 100,000 drum fish, 100 miles away from Beebe, were found sick or dead in a twenty mile section of the Arkansas River.

Photo source: red-winged blackbird by ‘dmallen321’ (Flickr); many birds by ‘seabamirum’ (Flickr)

Nancy R. Peck

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Feathers consist of thousands of flat branches. With electron magnification, thin plate-like layers are seen. It’s the pattern of these layers that leads to an interference phenomena—the iridescence. We see this lustrous glimmer with peacock feathers and feathers of other birds. Butterfly wings and other insects have iridescence too.

peacock feather close-up

Peacock feather Photo by Gordana Adamovic-Mladenovic

Scientists have detected miniscule “melansomes” in feathers, the color-bearing organelles. With this advancement, they are now able to decipher the colors of extinct birds as left behind in their fossils. A recent re-study of some 47 million-year-old fossil specimens indicated a sheen was present, as we see on starlings today.

Also of interest: It is thought that feathers did not originate as flight structures or as insulation. Feathers came before wings. Paleontologists thus theorize that plumage arose for color display purposes.

Incidentally, peafowls (species name) are native to India, Burma, Java, Ceylon, Malaya and Congo. They are closely related to pheasants, difference being their plumage. Peafowls can live a long life of 40 – 50 years. It is the male that is called a peacock and the female a peahen. And those under the age of one—peachicks. Thank you United Peafowl Association.

Photo source: Gordana Adamovic-Mladenovic–Creative Commons Attribution License

Nancy R. Peck

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