Nov 07, 2008
Photo Friday: Our National Bird
In honor of Election Day and the important voting that took place this week by so many American citizens, I’m posting a special photo of our national bird — the American bald eagle. If you look closely at this wonderful image, you can see the eagle’s nictitating membrane — or third eyelid — being drawn across its eye.
The translucent third eyelid helps to protect, moisten, and clean the bird’s eye. Often eagles will use it to protect their eyes while they’re tearing up prey or while beak-feeding food to their young.
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Friday, November 7th, 2008 at 8:39 am under
