DVM One of nature's true marvels is the design of the avian eye. In general, birds possess some of the best vision capabilities in the animal kingdom. Birds see in color which is important in recognizing food and danger and is possibly used in mating rituals.
Birds also see with enormous accuracy and at long distances.
Some have very advanced depth perception and motion detection capabilities, while others see well at night. A bird's eyes are quite large in comparison to the size of its body and are extremely important to its survival. Nocturnal birds such as owls make very efficient use of light. Other birds, have finely tuned focusing ability, enabling them to see accurately at long distances. The following examples show various ways that humans have attempted to use this superior ability.