10,000 Birds - Birding, blogging, conservation, and commentary
Terminology

What is a Nictitating Membrane?

February 6, 2014 by Corey 4 Comments
A nictitating membrane is a third eyelid that is translucent...
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Birds

Do Birds Have Penises?

April 23, 2012 by Birdchick 21 Comments
Warning, if you can’t tell by the title of the...
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