Vision is the most important sense for birds, since good eyesight is a major leverage for safe flight. Birds have a number of adaptations which give visual acuity superior to that of other vertebrate
With forward-facing eyes, the bald eagle has a wide field of binocular vision.
The nictitating membrane of a masked lapwing
The European robin has relatively large eyes, and starts to sing early in the morning.
Birds of prey or predatory birds, also known as raptors, are hypercarnivorous species of bird that actively hunt and feed on other vertebrates, mainly mammals, reptiles, and smaller birds. In addition
Bird vision
…has a structure, the pecten oculi, unique to birds. Some bird groups have specific modifications to their visual system linked to their way of life. Birds of prey have a very high density of receptors and other adaptations that maximise visual acuity. The placement of their eyes gives them good binocular vision…
An obliged point of transit of the migration of the birds of prey is the bottleneck-shaped Strait of Messina, Sicily, here seen from Dinnammare mount, Peloritani.
Male (left) and female (right) red-footed falcons