The Red-tailed hawk is the most common and widespread hawk in North America. There are many sub-species of red-tailed hawks, the colors and markings vary widely, adults generally have a reddish brown tail. They hunt by soaring in wide circles above fields or sitting in areas with high perches watching before they attack. They hunt for mammals, small birds, reptiles including rabbits, voles, snakes, frogs, or insects. The females are larger than males. Red-tailed hawks are monogamous and may mate for life. I have seen many of these large birds in northern Arizona lately, in various places such as poles, snags, and trees in wooded, water, and field areas. The one to the left was near a pond area. The one to the right was in an open field, I watched him take off from the pole, snag this rodent, then come back.