The arrangement of the eyes in the head, the shape of the eyeball, and the ability to focus rapidly are all important factors. The position of the eyes in the head allows birds to see in all directions at once. The shaped eyeball focuses light onto a tiny section of the retina, which helps tolowlight Sudden BlinkingL Aquatic Predators In many cases,blinking can be seen as an invitation for predators to attack. By being able to see in low light conditions better than most other animals,birds can more easily spot potential prey.