342 Mr. C. H. B. Grant on Birds collected in Ay-gentina, 



of the neck in winter is thicker and longer than in snmmer, 

 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 o£ 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 featherins:. 



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. PncENicoPTEPaD.E. 



208. Phcenicopterus ignipalliatus. 

 Phcenicopterus ignipalliatus xVrg. Orn. ii. p. 117. 

 a. $ ad. Los Yuglases, 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. Palamedeid.e. 



209. Chauna cristata. 



Chaima chavaria Arg. Orn. ii. p. 119. 



Chauna cristata Salvad. Cat. B. xxvii. p. (]. 



a, 6. cJ ? 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 

 sahnon-colourcd. 



S . Irides i)ale bj'own. 



