Io8 UNIVERSITY OF COLORADO STUDIES 



Astragalinus psaltria. — Arkansas goldfinch. 



Spinus pinus. — Pine siskin (Sprague, Henderson, Bragg). 



Pocecetes gramineus confinis. — Western vesper sparrow. 



Chondestes grammacus strigatus. — Western lark sparrow. 



Zonotrichia leucophrys gambeli. — Gambel sparrow. 



Splzella socialis arizonce. — Western chipping sparrow (Sprague, Hen- 

 derson). 



Spizella breweri. — Brewer sparrow (Henderson, Felger). 



J unco hy emails. — Slate-colored junco. 



J unco montanus. — Montana junco. 



Amphispiza belli nevadensis. — Sage sparrow (Dille). 



Melospiza cinerea montana. — Mountain song sparrow. 



Zamelodia ludoviciana. — Rose-breasted grosbeak (Cooke). 



Zamelodia melanocephala. — Blackheaded grosbeak. 



Guiraca ccerulea lazula. — Western blue grosbeak (Felger, Dille). 



Spiza americana. — Dickcissel. 



Tachycineta thalassina lepida. — Northern violet-green swallow (Felger, 

 Henderson). 



Lanius ludovicianus excubitorides. — White-rumped shrike (Dille). 



Dendroica coronata. — Myrtle warbler (Bragg, Henderson). 



Geothlypis Irichas occidentalis. — Western yellow throat (Henderson). 



Wilsonia pusilla pileolata. — Pileolated warbler. 



Oroscoptes montanus. — Sage thrasher (Dille). 



Toxostoma rujum. — Brown thrasher (Henderson). 



Certhia familiaris montana. — Rocky Mountain creeper (Sprague, 

 Henderson). 



Sitta carolinensis aculeata. — Slender-billed nuthatch (Sprague). 



Sitta Canadensis. — Red-breasted nuthatch (Sprague). 



Regulus calendula. — Ruby- crowned kinglet (Sprague). 



Hylocicla ustulata almae. — Alma thrush (Dille). 



The same plan has been followed as in the preliminary list, of placing 

 the name of the person upon whose authority the species is reported 

 in parentheses after the common name, in all cases where Boulder 

 County specimens are not in the University collection. The additional 

 list is gathered from the notes of Dr. J. R. Brackett, Professor A. H. 



