102 Mr. C. H. B. Grant on Birds collected in Argentina, 
Ad. $ . Irides hazel; bill, upper mandible dark olive, 
lower pale; legs and toes purplish brown. 
The December and February adult birds are worn and the 
March bird is moulting. 
The two May females are in the new dress and are much 
browner than those in worn breeding-plumage. 
The young male is rather paler above than fresh-moulted 
adult females, and is whiter below with more numerous and 
narrower streaks. 
This is a common resident species at Ajo, where it is 
called the “ Canary ” or “ Yellow House-Sparrow.” 
It is very tame and often found round habitations, and 
has a rather sweet song. 
It usually breeds in the old nests of Furnarius rufus and 
occasionally under the roofs of outbuildings. The nest is 
cup-shaped and composed of wool. Eggs were brought 
home taken at Ajo. 
52. Sycalis arvensis. 
Sycalis arvensis Sharpe, Cat. B. xii. p. 382. 
a, b , c, d, e. $ $ ad. Los Ynglases, Ajo. Nov. 10-24, 
1908. 
/. ? ad. Luiconia, Ajo. Nov. 19, 1908. 
q. ? young. Los Ynglases, Aio. Jan. 7, 1909. 
h. $ ad. „ „ Feb. 27, 1909. 
i, j. S $ ad. „ „ April 3, 1909. 
k, l,m. $ $ ad. „ ,, Dec. 13-24, 1909. 
Irides hazel; bill, upper mandible dark brown, lower 
pale ; legs and toes pale brown. 
Most of the November and December birds are worn 
and the February one is moulting. 
The April pair are in new dress, though the male is still 
moulting, and both are apparently fully adult. 
The male is much browner above than the breeding-birds 
and has a distinct wash of greenish across the chest. The 
female is much browner, both above and below, than the 
breeding-bird. The young bird is not quite fully fledged. 
A very common Finch on all the open grass-lands, often 
going in flocks in the winter. It is essentially a ground 
