Harris Hawk
Parabuteo unicinctus

f5.6 @ 1/2500s, ISO:1250, Nikon D3S w 500mm

"Harris Hawk," Wikipedia, the free encyclopedia. This species occurs in relatively stable groups. A dominance hierarchy occurs in Harris's hawks, wherein the mature female is the dominant bird, followed by the adult male and then the young of previous years. Groups typically include from two to seven birds. Not only do birds cooperate in hunting, they also assist in the nesting process. No other bird of prey is known to hunt in groups as routinely as this species.
Laguna Seca Ranch, Edinburg, Texas