A large space extending from the bill to behind the eye bare. Plumage very soft, loose, and blended; feathers of the hind head elongated and erectile, as are those of the neck generally, but especially of its hind and lower anterior parts; of the fore part of the back much elongated and acuminate, scapulars very large. Wings short, very broad, rounded; second and third quills equal and longest, first and fourth equal and but slightly shorter, the rest slowly graduated; secondaries broad and rounded. Tail very short, even, of twelve, broad, soft feathers. Bill greenish-black above, bright yellow beneath. Iris and bare part about the eye also bright yellow. Feet, greenish-yellow, claws dusky. Upper part of the head and nape glossy deep green. Neck purplish-red, tinged with lilac behind, and having anteriorly a longitudinal band of white, spotted with dusky-brown; a similar white band along the base of lower mandible to beyond the eye. Elongated feathers of the back greyish-green, in some lights bluish-grey, with the shafts bluish-white; the rest of the back similar; the upper tail-coverts and tail bluish-green; the lateral feathers slightly margined with white. Scapulars, wing-coverts, and inner secondaries, deep glossy green, bordered with yellowish-white; primary quills and outer secondaries greyish-blue tinged with green. Lower parts pale purplish-brown tinged with grey; axillary feathers purplish-grey, as are some of the lower wing-coverts; lower tail-coverts greyish-white. Length to end of tail 17-3/4 inches, to end of wings 17-1/2, to end of claws 24, to carpal joint 11-1/4; extent of wings 27; wing from flexure 7-5/8; tail 3-3/4; bill along the ridge 2-1/4, along the edge of lower mandible 3-1/4; bare part of tibia 10/12; tarsus 2; hind toe 7/8, its claw 1/2; middle toe 1-1/8, its claw (2-1/2)/8; inner toe 1-5/8, its claw 1/4; outer toe 1-3/8, its claw 1/4. Weight 7-1/2 oz. The Female is considerably smaller, but otherwise similar. Length to end of tail 17 inches, to end of wings 17, to end of claws 21-3/4; extent of wings 25. Weight 6-1/4 oz. Young fully fledged. Plate CCCXXXIII. The bill dull greyish-green, the lower mandible lighter: bare space around the eye greenish-blue, with the exception of a streak of yellow at the upper part. Iris yellow. Feet greenish-yellow, duller than in the adult. The hind neck light brownish-red, the fore part of the neck and all the under parts white, longitudinally streaked with brownish-red, some of the long feathers on the sides of the neck also white. At this age there are no elongated feathers on the back, which is greenish-blue, as well as the scapulars, and tail-feathers. Wing as in the adult, but the smaller feathers on its anterior part more red, the coverts with a small triangular tip of white, and the quills narrowly tipped and margined with the same. Length to end of tail 17-1/2 inches, to end of wings 17, to end of claws 23; extent of wings 25. Weight 6-1/2 oz.