342 Mr. C. H. B. Grant on Birds collected in Argentina , 
of the neck in winter is thicker and longer than in summer, 
being interspersed with longish down, while the lower throat 
and occiput are covered with short close-set down. 
The December birds are in a rather curious stage of 
plumage; they are in full summer dress, though the upper 
back and breast are paler than in other specimens. The 
greater part of the neck is covered with short thick down, 
the whole lower neck is in moult and the new feathers 
are appearing in two tracts up each side of the neck, leaving 
the throat and a tract down the front of the neck, and the 
occiput and a tract halfway down the back of the neck, 
covered with the down. The soft parts are as in the August 
and January birds. The August bird shews traces of having 
had a somewhat similar state of feathering. 
These birds are quite adult, as is shewn by the deep cor¬ 
rugations on the beak, and amongst the large series in the 
British Museum I can find no specimens that help to explain 
why they have donned this state of dress. 
Fam. PHCENICOPTERIDiE. 
208. Phcenicopterus ignipalliatus. 
Phoenicopterus ignipalliatus Arg. Orn. ii. p. 117. 
a. B ad. Los Ynglases, Ajo. June 12, 1909. 
Irides opaque pinky white ; orbits and bill opaque pinky 
white, apical half black; legs violet-grey, joints, toes, and 
webs carmine. 
Fam. Palamedeidas. 
209. Chauna cristata. 
Chauna chavaria Arg. Orn. ii. p. 119. 
Chauna cristata Salvad. Cat. B. xxvii. p. 6. 
a, b. B ? ad. Los Ynglases, Ajo. Oct. 3-13, 1908. 
c, d. $ $ ad. „ „ Feb. 19, 1909. 
$ . Irides dark brown; orbits and cere pink-flesh- 
coloured ; bill pale horn-coloured; legs and toes medium 
salmon-coloured. 
S . Irides pale brown. 
