220 BUFFEL-HEADED DUCK. 
the secondaries incurved, obliquely rounded, the inner much elongated 
and acuminate. Tail short, graduated, of sixteen feathers. 
Bill light greyish-blue. Iris hazel. Feet very pale flesh-colour, 
claws brownish-black. Fore part of the head of a deep rich green, up- 
per part rich bluish-purple, of which colour also are the elongated fea- 
thers on the fore part and sides of the neck, the hind part of the lat- 
ter deep green; a broad band of pure white from one cheek to the other 
over the occiput. The coloured parts of the head and neck are splen- 
dent and changeable. The rest of the neck, the lower parts, the outer 
seapulars, and a large patch on the wing, including the greater part 
of the smaller coverts and some of the secondary coverts and quills, 
pure white, the scapulars narrowly margined with black, as are the in- 
ner lateral feathers. Axillary feathers brownish-black, some of them 
white on the margins and towards the end ; lower wing-coverts brown- 
ish-black, the smaller tipped with white. The back. inner scapulars, 
and inner secondary quills, velvet-black. The feathers on the ante- 
rior edge of the wing are black, narrowly edged with white; alula, 
primary coverts, and primary quills deep black. The feathers on the 
rump gradually fade into greyish-white, and those of the tail are brown- 
ish-grey, with the edges paler, and the shafts dusky. 
Length to end of tail 143 inches, to end of wings 133, to end of 
claws 153; extent of wings 23; wing from flexure 63; tail 31; bill 
along the ridge 1;%, along the edge of lower mandible 154; tarsus 1,%, 
hind toe and claw 7; outer toe 274, its claw 24; middle toe 2, its 
claw #4; inner toe and claw 1,4. Weight 1 lb. 
Adult Female. Plate CCCXXV. Fig. 2. 
The female is much smaller. The plumage of the head is not 
elongated as in the male, but there is a ridge of longish feathers down 
the occiput and nape. Bill darker than that of the male; feet grey- 
ish-blue, with the webs dusky. Head, upper part of neck, hind neck, 
back and wings, greyish-brown ; a short transverse white band from 
beneath the eye, and a slight speck of the same on the lower eyelid. 
Six of the secondary quills white on the outer web. Lower parts 
white, shaded into light greyish-brown on the sides ; tail dull greyish- 
brown. 
Length to end of tail 13 inches, to end of claws 133, to end of wings 
113; extent of wings 22}. Weight 8 oz. 
