birdsoup

Birds have the best vision of almost any creature, much better than humans.

Tests showed that a Kestrel (a small falcon) can see an insect only 1/8 inch in length at a distance of 59 feet. At that distance the insect would be invisible to the human eye. Most humans would not begin to notice the insect until they are within 13 feet.

Raptors (eagles, hawks, falcons), because of the construction of their eyes, have the best vision of all birds. I’ve just read that an eagle’s vision is so good that it can read the telephone book from 100 yards away, that is the length of a football field. I am not sure that is really true. However, it should be easy to test if it is true. But first you would have to teach the eagle to read.