BIRDS OF COLORADO. 



13 



Contopus richardsonii. 

 Aphelocoma woodhousei. 

 Corvus corax sinuatus. 

 Spinus pinus. 

 Ammodramus sandwichensis 



alaudinus. 

 Tachycineta bicolor. 

 Tachycineta thalassina. 



Vireo solitarius plumbeus. 

 Salpinctes obsoletus. 

 Catherpes mexicanus consper- 



sus. 

 Sitta carolinensis aculeata. 

 Parus atricapillus septentrion- 



alis. 



Species that breed regularly only in southern Colo- 

 rado. 



Callipepla gambeli. 

 Columba fasciata. 

 Syrnium occidentale. 

 Geococcyx californianus. 

 Dryobates scalaris bairdi. 

 Cypseloides niger borealis. 

 Trocbilus alexandri. 

 Selasphorus rufus. 

 Amphispiza bilineata. 

 Amphispiza belli nevadensis. 

 Pipilo aberti. 



Guiraca caerulea eurhyncba. 

 Compsothlypis americana. 

 Dendroica sestiva sonorana. 

 Dendroica gracise. 

 Dendroica nigrescens. 

 Thryotborus bewickii leuco- 



gaster. 

 Parus inornatus griseus. 

 Psaltriparus plumbeus. 

 Polioptila caerulea. 



Species taken in the State during the summer, but not 

 known to breed. 



Ajaja ajaja. 

 Plegadis guarauna. 

 Ardea candidissima. 

 Pbilohela minor. 

 Callipepla squamata. 

 Melopelia leucoptera. 

 Coccyzus erytbrophtbalmus. 

 Melanerpes carolinus. 



Phalsenoptilus nuttalli nitidus. 



Dolichonyx oryzivorus. 



Icterus spurius. 



Junco phseonotus dorsalis. 



Passerina cyanea. 



Mniotilta varia. 



Seiurus aurocapillus. 



Migrants; species that have been taken in the State 

 during the spring or fall, but are not known to breed 

 or winter in Colorado. 



^chmophorus occidentalis. 

 Colymbiis holboellii. 

 Colymbus auritus. 

 lyarus occidentalis. 

 Larus californicus. 



Larus franklinii. 

 Larus Philadelphia. 

 Sterna paradisaea. 

 Phalacrocorax dilophus. 

 Anas obscura. 



