519. House finch. Carpodacus mexicanus frontalis. Abundant resident.
521a. Mexican crossbill. Loxia curvirostra stricklandi. Resident; not uncommon; has been seen in summer 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 tephrocotis. Rare winter visitor; western species.
524a. 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 australis. This little bird and the white-tailed ptarmigan have the highest summer range of any Colorado birds.
528. Redpoll. Acanthis linaria. Common winter resident; lives from plains to 10,000 feet.
528b. Greater redpoll. Acanthis linaria rostrata. Rare or accidental winter visitor; one record.
529. American goldfinch. Astragalinus tristis. Resident; quite common in summer; sometimes reaches 10,000 feet.