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Posts Tagged "nictitating membrane"

Rough-legged Hawk

Posted on Feb 16, 2016

Rough-legged Hawk

This Rough-legged Hawk put on a brief but thrilling show for me today, facing into the wind to help it hover while scanning the land below for any small mammal prey. The wind was particularly strong thanks to the major storm currently impacting the Northeast region. Whichever one of the hawk’s eyes that was being battered by the wind the most was often covered by its nictitating membrane. This third eyelid is almost like wearing a pair of sunglasses for the raptor in that it can still see while the eye is more protected than it would be otherwise. It was also keeping the eye moist with...

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