Ixxii INTRODUCTION 



Dolichonyx oryzivorus : Bobolink. — Occasional summer resident. 



Molothrus ater : Cowbird. — Common summer resident. 



X anthocejihalus xanthocephalus : Yellow-headed Blackbiixl. — Not com- 

 mon. 



Agelaius phieniceiis : Red-wing-ed Blackbird. — Common summer resident. 



Sturnella magna neglecta : Western Meadowlark. — Common summer resi- 

 dent. 



Icterus hullocki : Bullock Oriole : Tolerably common summer resident. 



Scolecophagus cyanocejjhalus : Brewer Blackbird. — Common. 



Quiscalus quiscula (eneus : 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 tephrocotis : Gray-crowned Leueosticte. — Frequent winter 

 visitor. 



Acanthis linaria : Redpoll. — Occasional winter visitor. 



Astragalinus tristis : Goldfinch. — Common summer i-esident. 



Astragalinus psaliria : 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. 



Bhynchophanes mccoumii : McCown Longspur. — Abundant summer resi- 

 dent. 



Pooecetes graminens con finis : Western Vesper Sparrow. — Common mi- 

 grant ; probably breeds near. 



Ammodramus sandwichensis alaudinus : Western Savanna Sparrow. — Com- 

 mon migrant. 



Chondestes gramniacus strigatus : Western I^ark Sparrow. — Common mi- 

 grant. 



Zonotrichia lencophrys gambelii : Gambel Sparrow. — Common migrant. 



Spizella monticola ochracea : Western Tree Sparrow. — Common migrant. 



Spizella socialis arizonce : Western Chipping Sparrow. — Tolerably com- 

 mon migrant. 



Spizella jmllida : Clay-colored Sparrow. — Common ; probably breeds. 



Spizella hreweri : Brewer Sparrow. — Tolerably common. 



Junco hyemalis : Slate-colored Junco. — Tolerably common. 



Junco hyemalis connectens : Intermediate Junco. — Tolerably common, 



Junco mearnsi : Piuk-sided Junco. — Common migrant. 



Amphispiza belli nevadensis : Sage Sparrow. — Rare visitor. 



Melospiza 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 amxena : 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 ; l)reeds. 



Hirundo erythrogastra : Barn Swallow. — Common ; breeds. 



