Pretty sure this is what I saw the other day. Harris' Hawk. There were two of them circling together. That I thought was odd.This would explain it though." The Harris' hawk is notable for its behavior of hunting cooperatively in packs consisting of tolerant groups, while other raptors often hunt alone. It is the Harris's Hawk's intelligence which leads to a social nature which results in easier training and has led to the Harris' hawk to become a popular bird for use in falconry. "