Hawks are medium-sized birds of prey. They are mainly woodland birds that hunt by sudden flights from a concealed perch. They usually have long tails. Hawks are widely reputed to have visual acuity several times that of a normal human being. This is due to the many photoreceptors in the retina (up to 1,000,000 per square mm for Buteo, against 200,000 for humans), an exceptional number of nerves connecting these receptors to the brain, and an indented fovea, which magnifies the central portion of the visual field.
The Red-tailed Hawk is a medium-sized bird of prey. Its preferred habitat is mixed forest and field, with high bluffs or trees that may be used as perch sites. However, it has adapted to the presence of man and can often be seen perching on highway utility poles. It can also be found in cities. The non- fiction book Red-Tails in Love: A Wildlife Drama in Central Park by Marie Winn made Pale Male, a Red-tailed Hawk in New York, the most famous urban red-tailed hawk. (Photo by Gary Yankech)