108 Mr. C. H. B. Grant on Birds collected in Argentina , 
65. Trupialis militaris. 
Trupialis militaris Scl. Cat. B. xi. p. 356 ; Arg. Orn. i. 
p. 104. 
a. $ ad. Los Ynglases, Ajo. Nov. 10, 1908. 
Iris dark brown; bill, upper mandible black and pale 
slate-coloured, lower pale slate-coloured ; legs and toes horn- 
brown. 
b. $ imm. Tuyu, Ajo. Dec. 2, 1908. 
c, £ juv. Cape San Antonio. Dec. 21, 1908. ♦ 
Iris hazel ; bill pale brown, gape cream-coloured ; legs and 
toes very pale ashy. 
d , e. <? $ ad. Los Ynglases, Ajo. Feb. 27, 1909. 
f, 9 > h. S 9 *’• ? ad. Los Ynglases, Ajo. May 1909. 
k. $ ad. Los Ynglases, Ajo. Dec. 29, 1909. 
l, m. $ $ ad. Los Ynglases, Ajo. Jan. 11, 1910. 
Quite a common resident in the Ajo district, especially in 
the sand-hills bordering the coast-belt. 
It also breeds there, the nest being a little dry grass placed 
on the ground under a tuft of grass or thistles. Three 
eggs appear to form the complete clutch. 
I have only found the nest by actually riding over it, the 
hen bird rising under the horse’s feet, when the white 
under wings can be easily seen which distinguish this species 
from T. defilippii. 
66. Trupialis defilippii. 
Trupialis defilippii Scl. Cat. B. xi. p. 357; Arg. Orn. i. 
p. 105. 
a. S > b-f. ? ad. Los Ynglases, Ajo. April 1909. 
Iris dark brown; bill pearly slate-coloured ; legs and toes 
purplish brown. 
gj hj i. <$ ad. Los Ynglases, Aj6. May 1909. 
This species appeared in large numbers at Ajo after the 
breeding-season and frequented the open grass-lands, being 
a pretty and conspicuous object. 
It cannot be distinguished from T. militaris on the ground, 
but on the wing the black under wing-coverts at once 
distinguish it from that species. 
