Estancia Espartilla, Argentine Republic. 199 



the ground under tufts of grass. Nests very hard to discover. 

 Eggs four in number. Native name " Beclio Colorado." 



27. Amblyrhamphus holosericeus (Scop.). 



Rare. Inhabits the ruslies in lagoons, where it appa- 

 rently lives the whole year. Seems to pair for life, never 

 flocking. 



28. PSEUDOLEISTES VIRESCENS (Vicill.). 



Very common throughout the year, flocking in the winter 

 monthSj when it roosts in the montes. Breeds early in 

 October, either in low bushes or thistles or in tall clumps of 

 paja-grass. Eggs four in number. 



29. TiENiopTERA coRONATA (VieilL). 



Hare, beiug met with from March to June. (See Ibis, 

 1891, p. 17.) 



30. Tjenioptera dominicana (Vieill.). 

 Rare; only one specimen seen, that in winter. 



31. Alectrurus risorius, Vieill. 

 Rare; only stragglers seen. 



32. LiCHEXOPS PERSPICILLATUS (Gm.). 



Common from August to April, but departs for the winter. 

 Breeds early in November in paja-grass. Eggs three in 

 number. Native name " Pico plata." 



33. Machetornis rixosa (Vieill.). 



Common throughout the year; flocks in small numbers 

 during the winter months. Feeds on the ground, catching 

 insects as it runs. Breeds late in October, nesting behind 

 bark, in Oven-birds' nests, or in cavities in walls. Eggs five 

 in number. 



34. Centrites NIGER (Bodd.). 



Common from February to September in pairs, and the 

 immature specimens appear to remain until November. (See 

 also Ibis, 1891, p. 18.) 



35. Serpophaga nigricans (\ieill.). 



Common throughout the year, in winter occasionally seen 

 in small parties, probably the parent birds aud young to- 



