68 Mr. H. Durnford on the Birds of Buenos Ayres. 



44. Tringa maculata (Vieill.) ; Nomencl. p. 145. 

 Observed in October, December, January, February, and 



April, and very common. Usually seen in large flocks. I 

 have sent a note on this species before. 



45. Tringa fuscicollis (Vieill.) ; Nomencl. p. 145. 

 Very common in the spring and autumn. Common at 



Baradero in April. Always seen in flocks. 



46. Rhyacophilus solitarius (Wils.) ; Nomencl. p. 146. 

 A spring and summer visitor ; but I have never found its 



nest, although I have observed it from October to March. 

 During this time I have constantly observed it about little 

 pools and swamps between Palermo and Belgrano, and also 

 about Campana, on the Parana. It differs from the other 

 Sandpipers here [Gambetta melanoleuca and G. flavipes) in 

 preferring the neighbourhood of trees and scrub to the open 

 lagunas or '' arroyos " in the campo. In size slightly less 

 than the last-named bird, I have seen no other Sandpiper here 

 it can be confounded with. It has a loud sharp note, which 

 it utters both on the ground and on the wing, and which is 

 very like that of the Green Sandpiper at home. Its food 

 consists of soft-bodied aquatic larvae. Iris wood-brown ; 

 beak black, with the basal half of both mandibles inclining to 

 orange ; legs and feet between pea- and olive-green. 



47. Larus dominicanus, Licht. ; Ibis, 1877, p. 201. 

 Adult. — Beak pale yellow ; spot on the angle of the lower 



mandible orange. Iris light grey. Legs pale yellowish green ; 

 claws black. 



Immature, after second moult. — Beak black. Iris wood- 

 brown. Legs pale lavender ; claws black. 



These notes were taken from specimens shot on the 8th 

 and 9th December 1876. 



