The Cooper's hawks and Northern Goshawks are both accipiters, and do share many traits in body shape and hunting styles. However, they really look different in the hand. And - both look very different from hatch year plumage to after-hatch year. The first two shots are of Cooper's hawks - the first is a hatch year, and the second is after-hatch year. Note the flat head (different from a Sharp-shinned's very rounded head).