Bill dull yellowish-green, the ridge of the upper mandible brownish-black, of a lighter tint toward the base. Bare space before the eye brown; eyelids greenish-yellow; iris reddish-yellow. Feet dull yellowish-green; claws wood-brown. Upper part of the head brownish-grey; a streak of pale buff over the eye to behind the ear; a dusky streak from the posterior angle of the eye; the cheek and an oblique band to the middle of the neck light brownish-yellow; beneath which is a dusky brown line from the base of the lower mandible, continuous with a gradually enlarged band of black, which runs along the side of the neck; the upper parts yellowish-brown, patched, mottled, freckled, and barred with dark brown; alula, primary coverts, and most of the quills, deep bluish-grey, approaching to black; the tips of all these feathers light reddish-brown, dotted with bluish-grey. The fore part of the neck white above, yellowish-white beneath, the throat with a middle longitudinal line of yellowish-brown spots; on the rest of the neck each feather with a light brown central mark edged with darker, the rest of the lower parts dull yellowish-white, most of the feathers marked like those on the neck. Length to end of tail 27 inches, to end of wings 26-1/2, to carpal joint 17, to end of claws 32-3/4; extent of wings 45; wing from flexure 13-1/4; tail 4-3/8; bill along the ridge 3-3/8, along the edge of lower mandible 4-1/2; breadth of mouth 1; depth of bill at base 3/4; bare part of tibia 1; tarsus 3-5/8; hind toe 1-3/4, its claw 1-1/2; middle toe 3-3/8; its claw 1; outer toe 2-5/8, its claw (7-1/2)/8; inner toe 2-1/4, its claw 7/8. Weight 1 lb. 7 oz. Female. Plate CCCXXXVII. Fig. 2. The Female resembles the male, but is somewhat smaller with the colours duller. Length to end of tail 26-1/4 inches, to end of wings 25-1/2, to end of claws 27-3/4; extent of wings 42-1/2; wing from flexure 12-1/4. Weight 1 lb. 3 oz. The dimensions of a young male shot in autumn were as follows: To end of tail 24 inches, to end of wings 24, to end of claws 29; extent of wings 26; wing from flexure 10-1/2. Weight 1 lb. 1-1/2 oz.