The birds move their neck very often because

Options

A. their ears are covered with feathers
B. they can fly
C. the bird,s eyes are fixed
D. the bird's have small eyes

Answer

C

Explanation

Birds, unlike humans and other mammals have their eyes placed on either side of their head. This results in very wide field of view. It helps them to scan for any predators or preys in their surroundings, Rut as their eyes are on the sides rather than being in front, they have a poor binocular vision. Due to such reduced binocular vision, the birds won.t be able to perceive depth of an object so easily. They turn their necks instead of eyes.