332 BIRDS OF THE ROCKIES 



VESPERTiNus MONTANUs. Resident ; found every month of 

 the year ; no nests found, but evidently breeds. 



515a. Rocky Mountain pine grosbeak. Pinicola enu- 

 CLEATOR MONTANA. Resident ; not uncommon ; most com- 

 mon in late summer and fall when most of them are just 

 below timber-line ; stragglers descend to foothills and 

 plains. 



517. Purple finch. Carpodacus purpureus. Migrant; 

 rare, if not accidental ; only one specimen, and that a 

 female. 



518. Cassin's purple finch. Carpodacus cassini. Com- 

 mon resident ; winters from plains to 7,000 feet ; breeds 

 from that altitude to 10,000 feet. 



519. House finch. Carpodacus mexicanus frontalis. 

 Abundant resident. 



521a. Mexican crossbill. Loxia curvirostra strick- 

 LANDi. Resident ; not uncommon ; has been seen in sum- 

 mer at 11,000 feet; breeds in mountains, perhaps in 

 winter like its eastern antitype. 



522. White-winged crossbill. Loxia leucoptera. Rare 

 winter visitor ; one record. 



524. Gray-crowned leucosticte. Leucosticte tephro- 

 coTis. Rare winter visitor ; western species. 



524.a. Hepburn's leucosticte. Leucosticte tephrocotis 

 LiTTORALis. Rare winter visitor ; summers in the North. 



525. Black leucosticte. Leucosticte atrata. Rare 

 winter visitor ; summer range unknown ; winters in the 

 Rockies. 



526. Brown-capped leucosticte. Leucosticte austra- 

 Lis. This little bird and the white-tailed ptarmigan have 

 the highest summer range of any Colorado bii'ds. 



