Coopers Hawk

A medium-sized hawk of the forest, the Cooper's Hawk specializes in eating birds. It is built for fast flight through the obstacle course of trees and limbs. Dashing through vegetation to catch birds is a rather dangerous lifestyle. A recent study found that 23 percent of all Cooper's Hawks examined had healed fractures in the bones of the chest, especially of the furcula or wishbone. A Cooper's Hawk captures a bird with its feet, and will squeeze it repeatedly to kill it. It does not bite the prey to kill it in the fashion of falcons, but holds it away from its body until it dies. It has been known to drown its prey, holding a bird under water until it stops moving. (Source: All About Birds)