Chickenhawk (bird) their supposed prey include: duck hawk (peregrine falcon), sparrowhawk (American kestrel), goshawk (northern goshawk), pigeon hawk (merlin), fish hawk (osprey), and quail hawk (Cooper's hawk). Chickenhawk (bird) In the United States, chickenhawk or chicken hawk is an unofficial designation for three species of North American hawks in the family Accipitridae: Cooper's hawk, also called a quail hawk, the sharp-shinned hawk, and the red-tailed hawk. The term "chicken hawk", however, is inaccurate. Although Cooper's and sharp-shinned hawks may attack other birds, chickens do not make up a significant part of their diets; red-tailed hawks have varied diets, but may opportunistically hunt
Choiseul pigeon pigeon may be a link between that species and the crowned pigeons. The adult pigeon was largely blue-grey, with a buffy orange belly and a distinctive slaty-blue crest. It is unknown how this crest was held by the bird in life. The bird's head sported a blue frontal shield surrounded by black feathers and a bicoloured beak. The wings were brown and the short tail was a blackish purple. It was described as having a beautiful rising and falling whistling call. As the bird became extinct before significant field observations could be made, not much is known about its behaviour.