The American Kestral is very common in our are and Paige Davis, the presenter, added to my knowledge of the bird. The Kestral is also known as a sparrowhawk. I always thought that was because of their small size, but it is because some ornithologists thought they ate mainly sparrows and other small birds. The Kestral is a falcon and closely related to the Peregrine Falcon. They are capable of high speed dives and their peak will kill preay much bigger than them.