Part 29

518. =Cassin's purple finch.= CARPODACUS CASSINI. Common 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 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.

529a. =Western goldfinch.= ASTRAGALINUS TRISTIS PALLIDUS. Migrant; probably common; added by Mr. Aiken.

530. =Arkansas goldfinch.= ASTRAGALINUS PSALTRIA. Common summer resident; breeds from plains to over 9,000 feet.

530a. =Arizona goldfinch.= ASTRAGALINUS PSALTRIA ARIZONÆ. Summer resident; not common.

530b. =Mexican goldfinch.= ASTRAGALINUS PSALTRIA MEXICANUS. Rare, but believed to be a summer resident at Trinidad.

533. =Pine siskin.= SPINUS PINUS. Common resident; breeding range from plains to timber-line.

000. =English sparrow.= PASSER DOMESTICUS. Rapidly increasing in numbers; has settled at points west of the range.

534. =Snowflake.= PASSERINA NIVALIS. Rare winter visitor; one record west of the range; several east.

536a. =Alaskan longspur.= CALCARIUS LAPPONICUS ALASCENSIS. Common winter resident; breeds far north.

538. =Chestnut-collared longspur.= CALCARIUS ORNATUS. Rare summer resident; winter resident, not common; common in migration.

539. =McCown's longspur.= RHYNCOPHANES MCCOWNII. Common winter resident, dwelling on the plains.

540a. =Western vesper sparrow.= POOCÆTES GRAMINEUS CONFINIS. Abundant summer resident; breeds from plains to 12,000 feet.

542b. =Western savanna sparrow.= AMMODRAMUS SANDWICHENSIS ALAUDINUS. Common summer resident; breeds from base of foothills to almost 12,000 feet.

545. =Baird's sparrow.= AMMODRAMUS BAIRDII. Migrant; not common; a number taken east of the range, and one west.

546a. =Western grasshopper sparrow.= AMMODRAMUS SAVANNARUM PERPALLIDUS. Not uncommon summer resident; breeds on plains and in lower foothills.

552a. =Western lark sparrow.= CHONDESTES GRAMMACUS STRIGATUS. Common summer resident; breeds on plains and in mountain parks to 10,000 feet.

553. =Harris's sparrow.= ZONOTRICHIA QUERULA. Rare migrant; abundant migrant in Kansas.

554. =White-crowned sparrow.= ZONOTRICHIA LEUCOPHRYS. Abundant summer resident.