468 Mr. F. Withingtaii on the 



45. Chrysoptilus cristAtus (VieilL). 

 A great rarity in these parts ; this specimen (shot June 6th, 

 1887) is the only example of the species I have ohtained here. 



-f-46. CoLAPTES AGRicoLA, Malh. 

 Two females of this species. 



-f 47. Ceryle torquata (Linn.). 



This is the only specimen of this bird I have seen in the 

 district. It was found perched on a willow branch over- 

 hanging a small stream. 



48. GuiRA piRiRiGUA (Vicill.). 



Common. Often lays in the old nests of the Chimango 

 {Milvago chimango). They are polygamous, and I have taken 

 as many as twenty eggs out of one nest. 



-r 49. CoccYZUs americanus (Linn.). 



[A single specimen, obtained 28tli January, 1886, un- 

 doubtedly belongs to this North-American species^ of which 

 the occasional occurrence in the Argentine Republic was 

 already known to us. See notice P. Z, S. 1872, p. 496. — 

 P.L.S.] 



-f- 50. CoCCYZUS MELANOCORYPHUS, Vicill. 



[Several examples of this species. — P. L. S.] 



■\- 51. CoccYZus ciNEREUs, Vicill. 



Fairly common, appearing about end of October and 

 beginning to breed soon afterwards. The nest is placed in 

 hedges, about eight feet from the ground, and its structure 

 resembles that of Coccyzus melanocorijphus. Although I 

 have several times found the nest I have only once seen the 

 eggs, which were quite white. 



-f 52. Strix flammea, Linn. 



[One skin of this well-known bird, belonging to the sub- 

 species joer/o/a. — P. L. S.] 



-f- 53. Asio brachyotus (f'orster). 



Very common. In summer evenings scores of these birds 

 are seen hawking over the long grass fields after their prey, 

 which consists of mice, beetles, &c. The nest is generally 



