of the Lower Pilcomuyo. 135 



[Azara's Ibiyau cola de tixera (no, 309) became the Capri- 

 mulyus farciftr of Vieillot. Therefore the Hydropsalis of the 

 Pilcomayo shouki probably bear this name. But I am not sure 

 that it is different from H. torqimta of BraziL — P. L. S.] 



78. Hylocharis sapphirixa. {Op. at. ii. p. 8.) 

 Although frequently seeu^ Humming-birds occurred singly 



and in small numbers, and were very shy. The only specimens 

 which I shot (three) belonged to the above-named species. I 

 am certain that at least two other species occur, but I did 

 not manage to obtain specim.ens, and so could not identify 

 them with any certainty. H. sapphirina was obtained at 

 Puerto Bermejo, and at Fortin Page on the Pilcomayo. In 

 the latter case it was met with on acacia-blossoms. 



79. COLAPTES AGRICOLA. (Op. cU. U. p. 24.) 



(No. 108, c?; 139, ? .) Fortin Donovan. May 3rd, 1890. 

 Abundant in the palmar, going in small flocks, and feeding 

 chiefly on ants. 



80. Chloroxerpes CHRYSOCHLORUS (Yieill.) : Hargitt, Cat. 

 Birds, xviii. p. 72. 



(No. 72, f^; 7o, ? .) Near Fortin Donovan. April 24th, 

 1890. 



Occasionally met with. 



[One of Azara's discoveries in Paraguay (his Carpintero 

 verde dorado), and consequently quite to be expected on the 

 Pilcomayo. — P. L. S.] 



81. Chrysoptilus cristatus. {Op. cit. ii. p. 21.) 



(Nos. 58, 59, & Q\, S; 40, ? .) Near Fortin Nueve. 

 April 13th, 1890. 



Very common, coming next after Colaptes agricola and 

 Campephilus leucopogon in point of abundance. Frequents 

 chiefly the open woodlands. Occasionally feeds on the 

 ground, but more often on trees. It often perches crosswise 

 on a branch. The nest is in a hollow palm-stem. 



82. Leuconerpes candidus. {Op. cit. ii. p. 23.) 

 (No. 117, ? .) Near Fortin Page. May 27th, 1890. 

 Very uncommon. The stomachs of two individuals ex- 

 amined contained only honey. 



