567.1. =Montana junco.= JUNCO MONTANUS. Winter visitor; not uncommon.
568. =Pink-sided junco.= JUNCO MEARNSI. Common winter resident; plentiful at base of foothills in winter; in spring ascend to 10,000 feet; then leaves the State for the North.
568.1. =Ridgway's junco.= JUNCO ANNECTENS. Rare winter visitor; one record.
569. =Gray-headed junco.= JUNCO CANICEPS. Abundant resident; breeds from 7,500 to 12,000 feet; sometimes rears three broods.
570a. =Red-backed junco.= JUNCO PHÆONOTUS DORSALIS. Rare migrant; abundant just south of State.
573a. =Desert sparrow.= AMPHISPIZA BILINEATA DESERTICOLA. Summer resident; not uncommon locally; found only in southwestern part of the State.
574a. =Sage sparrow.= AMPHISPIZA BELLI NEVADENSIS. Abundant summer resident; common on sage-brush plains of western and southwestern Colorado; ranges as far east as San Luis Park and north to Cheyenne, Wyoming.
581. =Song-sparrow.= MELOSPIZA FASCIATA. Rare migrant; found only at eastern border of State.
581b. =Mountain song-sparrow.= MELOSPIZA FASCIATA MONTANA. Common summer resident; a few remain on plains in mild winters; breeds from plains to 8,000 feet.
583. =Lincoln's sparrow.= MELOSPIZA LINCOLNI. Common summer resident; abundant in migration; breeds from base of foothills to timber-line.
584. =Swamp sparrow.= MELOSPIZA GEORGIANA. Accidental summer visitor; one record.
585c. =Slate-colored sparrow.= PASSERELLA ILIACA SCHISTACEA. Rare summer resident; only three records.
588. =Arctic towhee.= PIPILO MACULATUS ARCTICUS. Winter resident; not uncommon; comes to base of Rocky Mountains in winter; breeds in the North, as far as the Saskatchewan River.
588a. =Spurred towhee.= PIPILO MACULATUS MEGALONYX. Common summer resident; upper limit, 9,000 feet.
591. =Cañon towhee.= PIPILO FUSCUS MESOLEUCUS. Resident; common locally; all records from Arkansas Valley; rare at an altitude of 10,000 feet.
592. =Abert's towhee.= PIPILO ABERTI. Rare summer resident; species abundant in New Mexico and Arizona.
592.1. =Green-tailed towhee.= OREOSPIZA CHLORURA. Common summer resident; melodious songster.
593. =Cardinal.= CARDINALIS CARDINALIS. Winter visitor; rare, if not accidental; two records.
595. =Rose-breasted grosbeak.= ZAMELODIA LUDOVICIANA. Accidental summer resident; one record.