Range. - Northern North America, south in winter to the northern parts of the United States.
This species is one of the largest, strongest and most audacious of American Hawks, frequently carrying off Grouse and poultry, the latter often in the presence of the owner. It is a handsome species in the adult plumage, with bluish gray upper parts, and light under parts, finely vermicuiated with grayish and black shafts to the feathers. Length 23 inches. Their nests are placed well up in the tallest trees, usually in dense woods, the nests being of sticks lined with weeds and bark. The three or four eggs are bluish white, generally unmarked, but occasionally with faint spots of brown. Size 2.30 x 1.70.
Geo. L. Fordyce NEST AND EGGS OF Cooper's HAWK.
Range. - Western North America from Alaska to California, breeding chiefly north of the United States except in some of the higher ranges of the Pacific coast. This sub-species is darker, both above and below, than the American Goshawk. Its nesting habits and eggs are precisely the same. The eggs are quite variable in size.