158 Dwicut, Moult of Quatls and Grouse. 
they have already assumed several new, partly grown inner pri- 
maries and a very few of the reddish brown body feathers. An 
Alaskan specimen (L. B. Bishop, No. 4501, 2, August 28) has 
renewed eight of the ten primaries, the two outer ones being 
worn and dirty white by comparison, and part of the other 
remiges and the wing-coverts except the median rows. New 
reddish mottled feathers have grown, scattered on the back 
rump and among the upper tail-coverts; and reddish feathers 
basally white, varying with their location, have largely replaced — 
the nuptial ones on the chin, throat, breast and sides. The 
growth of white feathers is well under way on the abdomen, 
flanks, legs and feet, and the later strips of supplemental white 
on the sternal bands have even begun to appear producing 
shortly, as in the young bird, the effect of a central band of 
white with two lateral bands. ‘The outer feathers of the sternal 
bands are the last to be renewed, a condition found on a female 
(L. B. Bishop, No. 4598, Alaska, Sept. 11) with the first and 
second primaries not fully grown, and the rectrices not yet reach- 
ing beyond the coverts. The abdomen, flanks, legs and feet 
are white, as well as most of the sternal bands, and the white is 
extending to the breast, white feathers just expanding being 
found at the customary points on various areas. The head and 
throat are chiefly reddish mixed with barred nuptial feathers, 
which also persist to some extent upon the back where white 
feathers of the supplementary stage are beginning to show. A 
similar male (Amer. Mus. No. 26162, Labrador, Sept. 26) shows 
a greater number of white feathers of the supplementary winter 
dress, and the primaries are full’ grown. Two specimens of 
allenit (Amer. Mus. No. 25857, ¢, and No. 25858, 2, Newfound- 
land, Sept. 15) also illustrate the preliminary winter plumage, 
having acquired a larger number of the reddish feathers than 
will be found on more northern birds, of which I have examined a 
large number from Labrador and Alaska. These birds, taken in 
various stages of plumage during July, August and September, 
illustrate the serial growth of feathers and the final acquisition of 
the pure white winter dress. 
Second or Adult Winter Plumage (supplementary), acquired by a 
partial supplementary postnuptial moult, the beginnings of which 
