382 
NATATORES. MERGUS. MERGANSER. 
abdomen, white. Upper part of the breast, and sides 
of the lower part of the neck pale reddish-brown, each 
side-edge of the feathers having a black streak. Sides, 
flanks, and behind the thighs, white, undulated with 
distinct zigzag bars of black. Lower part of the back 
and the rump deep clove-brown, undulated with white. 
Tail composed of sixteen feathers, deep broccoli-brown. 
Lesser wing-coverts, upon the ridge, and near to the 
shoulders, deep clove-brown. 
Female. PratE 58*. The Female, which bears a strong resemblance 
Young. 
to that of the preceding species, but of inferior size, and 
having the speculum, or white part upon the wing, di- 
vided by a black bar, formed by a part of the basal 
half of the secondaries being exposed to view. 
Crown of the head, and occipital crest liver-brown. Sides 
of the head and neck pale reddish-brown. Chin and 
throat white. Upper plumage (in winter) deep broccoli- 
brown ; the feathers upon the mantle and sides of the 
breast being margined with greyish-white. Under plu- 
mage white. Flanks broccoli-brown, margined paler. 
Bill and legs dingy orange. Irides red. 
The young males resemble the females till after the second 
moult, when they begin to show about the head and 
back the characters of the adult bird. 
