118 Mr. C. H. B. Grant on Birds collected in Argentina , 
Quite one of the commonest woodland birds of the Aj6 
district, where it breeds, placing a cup-shaped nest of lichen 
and moss lined with feathers in any convenient situation in 
the fork of a tree or bush, under a bridge, or down the side 
of a well: three eggs make the complete clutch. 
86. Cyanotis rubrigaster. 
Cyanotis azarce Scl. Cat. B. xiv. p. 110; Arg. Orn. i. p. 142. 
Cyanotis rubrigaster Sharpe, Hand-1, iii. p. 113. 
a, b. (J $ ad. Los Ynglases, Ajo. Oct. 3, 1908. 
c, d. young. „ „ Mar. ]3, 1909. 
e,f■ ? young. „ „ Feb. 16, 1910. 
In the female the superciliary stripe is more green than in 
the male. 
The young differs from the adult as follows:— 
“ Above, head dull black tipped with buff; superciliaries 
buff in front of eye, white behind ; lores and ear-coverts 
black, the latter tipped with buffv ; back and rump green 
tipped with buff; wings as in the adult, except that the edges 
of the lesser coverts are buff and the white is tinged with 
buffy; below, throat and neck buffy white, rest creamy buff 
with only the faintest indication of the breast-band; tail 
as in the adult.” 
Both the March young birds are moulting into the adult 
stage. 
A fairly common bird in the Ajo district and frequenting 
the great swamps and reed beds, where it nests. 
I have not myself taken the eggs, but there are two 
clutches in the collection of Miss Runnacles, taken at Ajo, 
the nest being as described by Hudson. 
87. Elainea albiceps. 
Elainea albiceps Scl. Cat. B. xiv. p. 141; Arg. Orn. i. 
p. 145 ; Berlepsch, Ornis, xiv. p. 403. 
a. $ ad. Los Ynglases, Ajo. Jan. 18, 1909. 
Irides hazel; bill dusky brown, base of lower mandible 
fleshy, gape orange; legs and toes dark sooty brown. 
In rather worn plumage, the only one observed in the 
Ajo district. 
