La vision des oiseaux

Vision is certainly the most important sense for birds. All the birds don’t have the same visual ability, but it is generally similar or superior to those of the primates. The main structures of the bird eye are similar to those of other vertebrates, but there are some differences in the number of specialized vision cells (receptors of the fovea, cones, rodes).
Some bird groups have specific modifications to their visual system linked to their way of life, in particular in nocturnal and diving birds.
This article summarizes these points and includes an animation presenting the general structure of the bird eyes, their position in the skull and some differences of field of views.