FEMALE LONG-TAILED DUCK. 19 
FEMALE LONG-TAILED DUCK. 
PLATE LXX.—Fia. 2. 
Anas hyemalis, Zinn. Syst. 202, 29.—Lath. Syn. iii. p. 529.—Peale’s Museum, 
No. 2811. 
HARELDA GLACIALIS.—LE&Eacu. 
Tuer female is distinguished from the male by wanting the 
lengthened tertials, and the two long pointed feathers of the 
tail, and also by her size and the rest of her plumage, which 
is as follows:—Length, sixteen inches; extent, twenty-eight 
inches ; bill, dusky ; middle of the crown, and spot on the side 
of the neck, blackish ; a narrow dusky line runs along the 
throat for two inches ; rest of the head, and upper half of the 
neck, white ; lower half, pale vinaceous bay, blended with white; 
all the rest of the lower parts of the body, pure white; back, 
scapulars, and lesser wing-coverts, bright ferruginous, centred 
with black and interspersed with whitish; shoulders of the 
wing and quills, black; lower part of the back, the same, 
tinged with brown ; tail, pale brown ash ; inner vanes of all 
but the two middle feathers, white ; legs and feet, dusky slate. 
The legs are placed far behind, which circumstance points out 
the species to be great divers. In some females, the upper 
parts are less ferruginous. 
Some writers suppose the singular voice, or call, of this 
species to be occasioned by the remarkable construction of its 
windpipe; but the fact that the females are uniformly the 
- most noisy, and yet are entirely destitute of the singularities 
of this conformation, overthrows the probability of this sup- 
position. 
