xvi Birds of Colorado 



SetopJiaga ruticilla, Anthus rubescens, Oreoscoptes 

 montanus, Mimus p. leucopterus, Dumetella carolinensis, 

 Toxostoma rufum., T. benderei, Troglodytes cb. parkmani, 

 Regulus calendula Polioptila c. ohscura, Hylocichla 

 f. salicicola, H. u. swainsoni ?, H. g. auduhoni, Sialia 

 sialis, Sialia m. hairdi. 



(c) Birds which breed within the State and occasionally 

 wdnter, though usually going further south — 40, or about 

 10 per cent. : — 



Mergus americanus, Anas platyrhynchos, Chaulelasmus 

 streperus, Mareca americana, Nettion carolinensis, 

 Dafila acuta, Marila americana, M. vallisneria, Clangula 

 islandica, Branta canadensis, Botaurus lentiginosus, 

 Nycticorax n. ncevius, Eallvs virginianus, Fulica ameri- 

 cana, Gallinago delicata, Zenaidura carolinensis, Circus 

 hudsonius, Accipiter velox, A. cooperi, Buteo h. calurus, 

 B. b. krideri, B. swainsoni, Falco mexicanus, F. p. 

 anxitum, F. columbarius, F. c. richardsoni, F. sparverius, 

 F. s. phalcena, Ceryle alcyon, Asyndesm-us lewisi, 

 Sturnella. neglecta, Euphagus cyanocephalus, Astragalinus 

 tristis, A. t. pallidus, Calcarius ornatus, Melospiza m, 

 montana, Lanius I. excubitorides, Salpinctes dbsoletus, 

 Planesticus m. propinquus, Sialia currucoides. 



(d) Birds not known to breed witliin the State, but 

 found more or less commonly in winter — 28, or about 

 7 per cent. : — 



Gavia arctica, Mergus serrator, Lophodytes curAillatus, 

 Marila afjinis, Clangula c. americana, Chareonettn 

 albeola, Harelda hyemalis, Astur atricapillus ?, Archibuteo 

 L sancti-johannis, Asio flammea, Nyctea nyctea, Agelaius 

 p. fortis, Euphagus carolinus, Leucosticte tephrocotis, 

 L. t. liitoralis, L. atrata, Acanthis linaria, Plectrophanes 

 nivalis, Calcarius I. alascensis, Rhyncophanes mccowni, 

 Zonotrichia I. gambeli, Spizella m. ochracea, Junco 



