108 Mr. C. H. B. Grant on Birds collected in Aryentina, 



65. TrUPIALIS MILITARIS. 



Trupialis militaris Scl. Cat. B. xi. p. 356 ; Arg. Orn. i. 

 p. 104. 



a. c? ad. Los Yiiglases, Ajo. Nov. 10, 1908. 



Iris dark brown ; bill, upper mandible black and pale 

 slate-coloured, lower pale slate-coloured ; legs and toes horn- 

 brown. 



d. S imm. Tuyn, Ajo. Dec. 2, 1908. 



c. c? juv. Cape San Antonio. Dec. 21, 1908. 



Iris hazel ; bill pale brown, gape creara -coloured ; legs and 

 toes very pale ashy. 



d,e. S ^ ad. Los Yiiglascs, Ajo. Feb. 27, 1909. 



/, g, h. S ; i. ? ad. Los Ynglases, Ajo. May 1909. 



k. ^ ad. Los Ynglases, Ajo. Dec. 29, 1909. 



/, 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. deflliimii. 



66. Trupialis defilippii. 



Trupialis defilipjni 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. 



^, h, i. S ad. Los Ynglases, Ajo. 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. 



