Paraguay, Bolivia, and Southern Brazil. 4G5 



243. ZoNIBYX MODESTUS. 



FMilromias modesta Arg. Orn. ii. p. ITl. 

 Zonibyx modesta Sliarpe, Cat. B. xxiv. p. 238. 

 a. ^ imm. Luiconia, Ajp. Apr. 29, 1909. 

 A common bird throughout the winter months in tlie Ajo 

 district, frequenting the open grass-lands, usually singly. 



244. iEoiALITIS FALKLANDICA. 



JEffialitis falkkmdica Arg, Orn. ii. p. 172; Sharpe, Cat. 

 B. xxiv. p. 295. 



a. J' ad. Los Ynglases, Ajo. Nov. 10, 1908. 



b. ? ad. Cape San Antonio. Dec. 17, 1908. 



c. $ young. „ „ „ Dec. 19, 1908. 



d. S young. Tuyu, Ajo. Apr. 11, 1909. 



e. $ young. Los Ynglases, Ajo. Apr. 16, 1909. 



f,f/. S ad. „ „ Dec. 15, 1909. 



/^ ? ad. „ „ Dec. 15, 1909. 



i. ? young. „ „ Jan. 23, 1910. 



A very common species in the Ajo district, frequenting 

 both the coast and inland waters, and being especially 

 plentiful on the former. Flocks of several hundreds can be 

 observed throughout the winter months. It also breeds 

 there, as mentioned by Mr. Ernest Gibson, j)robably more 

 plentifully in the sand-hills along the coast. In habits it 

 much resembles the European Ringed Plover, ^. hiaticola. 



245. /Egialitis collaris. 



jEgialitis collavia Arg. Orn. ii. p. 173 ; Sharpe, Cat. B. 

 xxiv. p. 288. 



a. ^ ad. Monte Alto, Paraguay. Aug. 25, 1909. 



b. ? ad. Desaguadero, „ Aug. 29, 1909. 

 c,d.(^^ ad, Colonia Risso, „ Sept. 9, 1909. 



e. c? ad. Near Puerto Braga, Paraguay, Sept. 24, 1909, 

 A fairly common species on the Parana and Paraguay 

 Rivers, especially on the latter, and many pairs were 

 observed. On the 10th and 24th of September breeding 

 pairs were seen, but I could not find their nests, though the 

 birds ran about in a verv excited manner within a few feet 



