Paraguay , Bolivia , and Southern Brazil. 
121 
95. Pyrocephalus rubineus. 
Pyrocephalus rubineus Scl. Cat. B. xiv. p. 21] ; Arg. Orn. 
p. 152. 
Los Ynglases, Ajo. 
Sept. 26, 1908. 
Oct. 31, 1908. 
Nov. 9-12, 1908. 
Dec. 24, 1908. 
Feb. 1-3, 1909. 
Mar. 12-23,1909. 
April 19, 1909. 
Dec. 27, 1909. 
Jan. 17, 1910. 
a. ^ ad. 
b. $ ad. 
c. d, e. ^ ? ad. 
/. ? ad. 
g, h, i,j. S ? ad.et yg. 
k, l. young. 
m. young. 
n, o. £ $ yg. & ad. 
p. $ ad. 
Irides hazel ; bill, legs, and toes black. 
One of the adult females has several coloured feathers on 
the head, another has one on the chest: four other females 
are tinged with colour on the under tail-coverts, and all are 
rather worn. 
The males appear to have a double moult, one in February 
and March (the autumn moult) and another in August. 
The specimens taken in February, March, and April appear 
at first sight to be young birds assuming the adult plumage, 
but I am by no means sure of this; and it strikes me that they 
are either adults assuming an off-season particoloured dress 
or are young birds changing from an intermediate to the 
adult stage. What appears certain is that they are not 
young in the first dress changing to the full adult plumage, 
as the ashy feathers of the crown are too dark and without 
edgings, and the streaked feathers of the under parts are 
similar to those of the adult female. 
The adult male taken on the 3rd of February is moulting, 
and ashy feathers are appearing on the breast, while many 
of the new feathers on the moulting March and April birds 
are particoloured, i. e. partly grey and partly red. 
But there are some specimens in the British Museum taken 
in April and May in full red dress that do not bear this out. 
So that the second conclusion is perhaps the nearer one, 
that is, that the young do not assume the adult dress in one 
moult, and have a particoloured stage lasting probably over 
