Vol i907 IV ] Bangs, Birds from Western Costa Rica. 287 



ON A COLLECTION OF BIRDS FROM WESTERN 

 COSTA RICA. 



BY OUTRAM BANGS. 



In 1891-1892 Mr. Geo. K. Cherrie made a famous collection of 

 birds for the National Museum of Costa Rica, on the Rio Grande 

 de Terraba in western Costa Rica, a region at that time practically 

 unknown ornithologically. He subsequently published a long 

 paper * on the results of his trip in which he described as new one 

 species — Henicorhina pittieri — and recorded the occurrence 

 for the first time in Costa Rica of ten more, — Basileuterus vera- 

 guensis, Hylophilus viridiflavus, Saltator albicollis, Capsiempis 

 flaveola, Synallaxis albescens, Automolus pallidigularis, Gymno- 

 cichla nudiceps, Dendrobates cecilice, Melanerpes chrysauchen and 

 Centurus tricolor. 



Mr. C. F. Underwood, whose name is so familiar to naturalists 

 the world over interested in the biota of Central America, had 

 always felt that much yet remained to be done in Cherrie's Boruca 

 region, and for a long time had urged me to let him make a trip 

 there in the spring and summer — Cherrie's work having been 

 done in the autumn and winter. Through the generous interest of 

 John E. Thayer, Esq., this was finally arranged, and Underwood 

 started from San Jose in March, 1906. He stopped for a short 

 time, both going and coming, at Punta Arenas and Boca Barranca 

 in the Golfo de Nicoya, where he collected a few birds, but the 

 main part of his time was spent on Cherrie's old ground on the 

 Rio Grande de Terraba, where he worked from April to August. 

 The principal localities at which he collected here, are Pozo del 

 Rio Grande, 500 feet altitude to sea level; Lagato, 800 feet altitude; 

 Barranca, Paso Real and Terraba, all about 1,000 feet altitude; 

 and Boruca, about 1545 feet altitude. 



His collection, numbering nearly 6,000 skins, is a very fine one, 

 and in the following pages I describe from it as new — Micrastur 



1 Exploraciones Zool<5gicas | efectuadas | en la parte meridional de Costa Rica | 

 por los aflos de 1891-92 | I | Aves | par | Geo. K. Cherrie | Taxidermista del Museo- 

 nacional, | 1893, | San Jose - de Costa Rica.l Tip. Nacional. 



