Ixxii INTRODUCTION 



Dolichonyx oryzivorm : Bobolink. Occasional summer resident. 



Molothrus ater : Cowbird. Common summer resident. 



Xanthocephalus xanthocephalus : Yellow-headed Blackbird.- Not com- 



mon. 



Agelains phifniceus : Red-wiiiged Blackbird.-- Common summer resident. 



Stuntf-lla magna neglecta : Western Meadowlark. -Common summer resi- 

 dent. 



Icterus buttock i : Bullock Oriole : Tolerably common summer resident. 



Scolecophagus cyanocephulus : 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 Leueostiete. 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 Long-spur. Summer resident ; not 

 common. 



Rhynchophanes mccownii : McCown Longspur. Abundant summer resi- 

 dent. 



Pocecetes 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 sodalis arizonce : Western Chipping Sparrow. - Tolerably com- 

 mon migrant. 



Spizella pallida : Clay-colored Sparrow. Common ; probably breeds. 



Spizella bretreri : Brewer Sparrow. Tolerably common. 



Jnnnt li'/t-//in/is : Slate-colored Junco. Tolerably common. 



Ji/nru hyemalis connectens : Intermediate Junco. - - Tolerably common. 



Jn iii-it mi uriixi : Pink-sided Junco. Common migrant. 



, 1 mphispiza belli m /-m/r//x/.s .- Sage Sparrow. - - Kare visitor. 



Mclnx/>iz<i titt/ndin Montana : Mountain Song Sparrow. -- Tolerably com- 



ninn migrant. 



Mi li>s/ii~fi lini-iilnil : Lincoln Sparrow. Common migrant. 

 Oi-fox/ji-n r/t/oriira : Green-tailed Towhee. ( 'ommon migrant. 

 /.a/in fuii in melanocephala : Black-headed Grosbeak. Occasional city vis- 

 itor only. 



Ci/diiox/ii-'i amcena : La/nli Bunting. Summer resident; not many nest. 

 Calamospiza melanocarys : Laik Hunting. Abundant; breeds. 

 Piranga ludoviciana : Louisiana Tanagcr. Common migrant. 

 riraiii/n iTi/tlirtuiicftis : Scnrh-t Tanager. -- Ifare visitor. 

 I'm;/ a*' Kiibis: Purple Martin.-- Hare visitor. 

 Petrochelidon Innifran s : Clill' Swallow. --Common; breeds. 

 Iliriiiiifn i rt/tlirni/iisfrii : Hani Swallow. ( 'ommon ; breeds. 



