lxxii 
INTRODUCTION 
Dolichonyx oryzivorus: Bobolink. — Occasional summer resident. 
Molothrus ater: Cowbird. — Common summer resident. 
Xanthocephalus xanthocephalus: Yellow-headed Blackbird. Not com¬ 
mon. 
Agelaius phoeniceus : Red-winged Blackbird. — Common summer resident. 
Sturnella magna neglecta : Western Meadowlark. —Common summer resi¬ 
dent. 
Icterus bullocJci: Bullock Oriole : -Tolerably common summer resident. 
Scolecophagus cyanocephalus : Brewer Blackbird. — Common. 
Quiscalus quiscula ceneus : Bronzed Grackle. — Rare. 
Coccothraustes vespertinus montanus: Western Evening Grosbeak. Visit¬ 
ant ; does not breed. 
Carpodacus mexicanus frontalis: House Finch. — Abundant summer resi¬ 
dent ; sometimes also winter resident. 
Leucosticte tepkrocotis: Gray-crowned Leucosticte. — Frequent winter 
visitor. 
Acanthis linaria: Redpoll. — Occasional winter visitor. 
Astragalinus tristis: Goldfinch. — Common summer resident. 
Astragalinus psaltria : Arkansas Goldfinch. — One taken in Cheyenne. 
Spinus pinus : Pine Siskin. — Regular autumn visitor. 
Passerina. nivalis: Snowflake. — Regular winter visitor, often in very large 
flocks. 
Calcarius ornatus: Chestnut-collared Longspur. — Summer resident; not 
common. 
Rhynchophanes mccownii: McCown Longspur. — Abundant summer resi¬ 
dent. 
Pooecetes gramineus confinis: Western Vesper Sparrow. — Common mi¬ 
grant ; probably breeds near. 
Ammodramus sandwichensis alaudinus: Western Savanna Sparrow. — Com¬ 
mon migrant. 
Chondestes grammacus strigatus : Western Lark Sparrow. — Common mi¬ 
grant. 
Zonotrichia leucophrys gambelii: Gambel Sparrow. — Common migrant. 
Spizella monticola ochracea : Western Tree Sparrow. —Common migrant. 
Spizella socialis arizonce: Western Chipping Sparrow. — Tolerably com¬ 
mon migrant. 
Spizella pallida : Clay-colored Sparrow. — Common ; probably breeds. 
Spizella breweri: Brewer Sparrow. — Tolerably common. 
Junco hyemalis : Slate-colored Junco. — Tolerably common. 
Junco hyemalis connectens : Intermediate Junco. — Tolerably common. 
Junco mearnsi: Pink-sided Junco. — Common migrant. 
Amphispiza belli nevadensis : Sage Sparrow. — Rare visitor. 
Metospiza melodia montana: Mountain Song Sparrow. — Tolerably com¬ 
mon migrant. 
Melospiza lincolnii: Lincoln Sparrow. — Common migrant. 
Oreospiza chlorura : Green-tailed Towhee. — Common migrant. 
Zamelodia melanocephala : Black-headed Grosbeak. — Occasional city vis¬ 
itor only. 
Cyanospiza amcena: Lazuli Bunting. — Summer resident; not many nest. 
Calamospiza melanocorys : Lark Bunting. — Abundant; breeds. 
Piranga ludoviciana: Louisiana Tanager. — Common migrant. 
Piranga erythromelas : Scarlet Tanager. — Rare visitor. 
Progne subis: Purple Martin. — Rare visitor. 
Petrochelidon lunifrons: Cliff Swallow. — Common ; breeds. 
Hirundo erythrogastra: Barn Swallow. — Common; breeds. 
