The ability of birds to distinguish color far surpasses human ability. The density of the cones in the retina of a bird is two to three times the density in the human eye, making avian vision even ...

But the impressiveness of bird vision is not limited to owls. The same mandate of prey detection drives the extreme development of eyesight seen in many other predators.

Structures and functions of bird’s eye. (a) Bird vision. (b) Deep central fovea and four types of cones. (c) Foveated vision and tetrachromatic vision. The eyes of raptors such as eagles can ...

Birds acquire some pigments, such as carotenoids, by eating fruits, seeds, or insects. Carotenoids produce the bright reds, yellows, and oranges seen in birds, and they are the same pigments that ...

Backyard songbirds, like cardinals and chickadees, see the world with visual clarity surpassing human eyesight. Acute bird vision derives from the retina's fovea - the center of sharpest vision ...

Bird vision is far superior to that of humans. Their retinas are far more light and color sensitive and they see four primary colors, allowing them to see ultraviolet light and color combinations ...

If optimists see the world through rose-colored lenses, some birds see it through ultraviolet ones. Avians have evolved ultraviolet vision quite a few times in history, a new study finds.

Birds depend on their color vision for selecting mates, hunting or foraging for food, and spotting predators. Until recently, ultraviolet vision was thought to have arisen as a one-time ...