On the Birds of the Estancia Sta. Elena. 315 



pieces of bark and cobwebs^ lined witb the same material ; it 

 is a deep cup-shaped structure, and the outside covered with 

 these pieces of bark makes it look like part of the bough 

 on which it is built. It has an internal depth of 1^ inch, 

 external 3 inches; internal diameter 1| inch, external 2 inches. 

 The eggs have the ground-colour white and lightly marked 

 towards the smaller end with large dark slate-coloured 

 markings varying in intensity ; at the larger end they 

 are confluent, but do not form a zone. They measure : 

 A \-77 X 1-35, B 1-8 x 1-35, C 1-75 x 1-32 centimetre. 



XXX. — Field-Notes on the Birds of the Estancia Sta. Elena, 

 Argentine Republic. — Part III.* By A. H. Holland. With 

 Remarks by P. L. Sclater. 



[Mr. Holland, who in the intervals of work continues to 

 collect and observe the birds met with on his estancia in the 

 Argentine Republic, again sends me a small collection to 

 look over. The notes were written in September 1895, but 

 the specimens, obtained during the previous breeding-season, 

 have only lately reached me. They are referable to the 

 following 11 species. I give Mr. Holland's field-notes. — 

 P. L. S.] 



1. Progne furcata (Arg. Orn. i. p. 24). 



[A fine adult male of this species. I am still doubtful 

 about its real distinctness from P. purpurea. — P. L. S.] 



2. Calliste pretiosa. Cab. (Scl. Cat. B. x. p. 114). 

 This is the only specimen I have seen of this species. 

 [This is a young female of Calliste pretiosa, of Paraguay 



and Southern Brazil, and is new to the Argentine avifauna. 

 It is probably only a straggler at Sta. Elena. — P. L. S.] 



3. AcELiEUs FLAVus (Arg. Orn, i. p. 98). 



Common, and resident here in small flocks all the year 

 breeding in the spring in the tall " paja" grass. 



* See Tart I., 'The Ibis,' 1893, p. 483, and Part II., 'The Ibis,' 1895, 

 p. 213. 



SER. VII. VOL. II. 2 A 



