Eagle is a large bird and it is member of the bird family Accipitridae, and belong to several genera which are not necessarily closely related to each other. Eagles are differentiated from other birds of prey mainly by their larger size, more powerful build, and heavier head and bill.
The eagle’s eyes are large, occupying most of their head, and they have colored vision much sharper than any 20/20 human vision in daylight. Additionally, they can rotate their heads 210 degrees, so they can take in panoramic views in search of prey while remaining stationary.
Kingfishers of all three families beat their prey to death, either by whipping it against a tree or by dropping it on a stone.They are able to see well both in air and under water. To do this, their eyes have evolved an egg-shaped lens able to focus in the two different environments.
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