345/366 | Third Eyelid
The American White Ibis demonstrating his third eyelid, also known as a nictitating membrane. This translucent "eyelid" offers protection and also moistens the eye while still maintaining vision. Rare in primates, it's found in fish, reptiles, amphibians, birds and some mammals. Isn't nature fascinating?
400mm | f/5.6 | ISO 160 | 1/1600 sec
Keywords:
American White Ibis,
birding,
birds,
Capitol Lakes,
Ibis,
nature,
nictitating membrane,
Project 365,
Project 366,
third eyelid,
wildlife
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© Gail A. Dixon