We went Library ,lent some books and then we talk abit about out projects. We found that Falcons are roughly divisible into three or four groups.The first contains the kestrels (probably excepting the American Kestrel);[9] usually small and stocky falcons of mainly brown upperside color and sometimes sexually dimorphic; three African species that are generally grey in color stand apart from the typical members of this group. Kestrels feed chiefly on terrestrial vertebrates and invertebrates of appropriate size, such as rodents, reptiles, or insects.
The second group contains slightly larger (on average) and more elegant species, the hobbies and relatives. These birds are characterized by considerable amounts of dark slaty grey in their plumage; the malar area is nearly always black. They feed mainly on smaller birds.
Third are the Peregrine Falcon and its relatives: large powerful birds which also have a black malar area (except some very light color morphs), and often a black cap also.