Seeing eye to eye with a blue-eyed brown pelican. If not, then you should not be surprised that our flying feathered friends have highly evolved vision.
Birds also have a third eyelid, a nictitating membrane that protects their eyes.
If you look closely when they blink, you can see a nearly transparent whitish membrane go across their eyes. These are very handy for animals and serve like the goggles of a swimmer or flyer. The latest digital cameras have millions of pixels so that they can record detail almost as well as high-resolution film cameras. Predators like hawks and eagles have ten times as many retinal cells to observe a small object, perhaps a tasty morsel. Like people, their eyes are forward-looking and the vision fields of the two eyes overlap giving them good depth perception.