The Mysterious Pecten Introduction Bird vision has impressed and baffled humans for centuries.
Scientists consider bird eyes to be the finest in the animal kingdom.
And raptors have the finest vision of all. Long ago, scientists observed eagles fishing, hawks and falcons dive-bombing prey from great distances, robins cocking their heads before pulling out a worm, and nighthawks snatching moths out of midair, and figured these birds must have extraordinary vision. When people examined dead birds, they noticed that the eyes fill a huge portion of the head. It's impossible to know for sure what the world looks like to an eagle, but we know from studying the anatomy of their eyes that their view must be enlarged and magnified compared to our view. But an eagle eye has a much different shape from ours.