N.W. Argentina and the Bolivian Chaco. 467 



47. Conurus acuticaudatus (Vieillot) . 



In flocks near the water. March 13th-15th, 1902, Tata- 

 renda, Caiza. Iris yellowish brown. 



48. Conurus leucophthalmus (Miill.). 



In small flocks, less common than the foregoing. March 

 17th, 1902, Tatarenda. Iris yellowish brown. 



49. Pyrrhura moling (Mass. et Souance). 



Iris brown. March 20th, 1902, Tatarenda. Occurs in 

 large flocks. 



50. Myiopsittacus monachus (Bodd.). 



Occurs in small flocks numbering about eight or ten. 

 Two specimens were shot at San Diego on our way to the 

 Bolivian Chaco, March 21st, 1902. Iris greyish brown. 



51. Chrysotis estiva (Linn.). 



Iris reddish yellow. Occurs in large flocks of several 

 hundreds, but is very shy. In the morning and evening 

 they fly to and from their feeding-places, making a deafening 

 noise. March 17th, Tatarenda ; April 1902, Colonia Crevaux. 



Not mentioned by Salvadori and believed to be new to 

 Bolivia. 



52. Pionus bridgesi Boucard. 



Feathers of the head green with dark violet, almost 

 blackish, edges. Lores black. On the hind part of the 

 crown and on the occiput the cinereous bases of the feathers 

 are broadly conspicuous. On the throat the edges of the 

 feathers are more broadly coloured with purple or violet. 

 A broad band across the fore-neck purple or violet. Back 

 and wing-coverts olive-green with a slight golden gloss. 

 Tail below green, with a bluish shade. Wing 197, 

 tail 93 mm. Iris reddish yellow. 



This specimen was shot by Count E. von llosen at 

 Tatarenda, April 1902. 



53. Caprimulgus parvulus Gould. 

 Tatarenda, April 3rd, 1902. Iris brown. 



5 1. PODAGER NACUNDA (Vieillot). 



This large Goatsucker Avas seen in small flocks flying 



