112 Mr. C H. B. Grant on Birds collected in Argentina, 



77. SiSOPYGIS ICTEROPHRYS. 



Sisopygis icterophrijs Scl. Cat. B. xiv. p 41 ; Arg. Orn. i. 

 p. 125. 



a, b. S ^ ad. Los Ynglases, Ajo. Sept. 16, 1908. 



c, d, e,f, h,i,j, k. S ? ad. Los Ynglases, /.jo. Oct. 10- 

 31, 1908. 



/, m. c? ad. Los Ynglases, Ajo. Nov. 8, 1908. 



n. S ad. „ „ Dec. 11, 1908. 



o,p, q,r, s. J $ ad. & young. Los Ynglases. Jan. 5-18^ 

 1909. 



/. ? ad. Los Ynglases, Aj6. Feb. 15, 1909. 



u. ? ad. „ „ Apr. 23, 1909. 



Irides hazel ; bill and legs and toes black. 



The adult females are not only less bright than the males 

 but have a distinct wash of olive across the chest. 



One of the November birds and the December one are 

 much worn and faded, but the other November bird is still 

 quite bright and hardly worn. 



The January and February adults are moulting, the old 

 feathers looking much worn and faded against tlie new 

 plumage; but the April bird, except for the head, has com- 

 pleted the moult. 



Neither of the two young birds is quite fledged ; they 

 differ from the adults as follows : — 



" Above, including head, bright olive - green ; wings 

 blackish, broad ends of coverts and outer edges of secondaries 

 pale yellow ; beneath, throat very pale yellow ; breast 

 striped with dull olive-green. 



A common bird in the Tala woods in the Ajo district, to 

 which it is a summer visitor, arriving in the early part of 

 September and leaving again towards the end of April. 

 Miss Runnacks' first record of its appearance for the 

 summer of 1909 is Sept. 8th. The nest is open and cup- 

 shaped and composed of twigs lined with feathers. Usually 

 very little attempt is made at concealment, it being placed 

 in the fork of a low shrub or tree, seldom at any great 

 height, and in a more or less open situation. 



The usual clutch of eggs is three, but occasionally four are 

 found. 



