The Birds of El Paso County, Colorado 469 



Sparrow, Gambel's Sparrow, Clay-colored Sparrow, Cassin's 

 Vireo, Tennessee Warbler, Myrtle Warbler, Black-poll Warb- 

 ler, Willow Thrush, Olive-backed Thrush, Alaska Hermit 

 Thrush. 



F — Birds not known to breed in the County, which have 

 been taken or seen on from one to half a dozen occasions, 51 

 species. Bonaparte's Gull, Double-crested Cormorant, 

 Hooded Merganser, Ring-necked Duck, White-winged Scoter, 

 Snow Goose, Greater Snow Goose, Canada Goose, Hutchins's 

 Goose, Whistling Swan, Least Bittern, Egret, Reddish Egret, 

 Sandhill Crane, Florida GaHinule, Stilt Sandpiper, White- 

 rumped Sandpiper, Upland Plover, Golden Plover, Band-tailed 

 Pigeon, Swallow-tailed Kite, Mississippi Kite, Osprey, Spotted 

 Owl, Flammulated Owl, Arctic Horned Owl, Black-billed 

 Cuckoo, Red-bellied Woodpecker, Black-chinned Humming- 

 bird, Calliope Hummingbird, Gray Flycatcher, Blue Jay, Crow, 

 Bobolink, Rusty Blackbird, Snow Bunting, Harris's Sparrow, 

 Dakota Song Sparrow, Swamp Sparrow, Indigo Bunting, 

 Dickcissel, Scarlet Tanager, Bank Swallow, Cedar Waxwing, 

 Prothonotary Warbler, Northern Parula Warbler, Oven-bird, 

 Sage Thrasher, Baird's Wren, Western Gnatcatcher, Bluebird. 



G — Species formerly occurring in the County, but now 

 exterminated or not seen for many years, 3 species. Colum- 

 bian Sharp-tailed Grouse, Merriam's Turkey, White-necked 

 Raven. 



H — Introduced species, 4. Bob-white, California Quail. 

 Ring-necked Pheasant, House Sparrow. 



ACKNOWLEDGMENTS. 



We wish to acknowledge help or notes from the following : 

 The Bureau of the Biological Survey, U. S. Department 

 of Agriculture, through its Chief, Mr. H. W. Henshaw, and 

 Assistant Ornithologist, Mr. H. C. Oberholser, has identified 

 various specimens for us, mention of which is usually specifi- 

 cally made in the text. 



Mr. William Brewster has kindly examined his notes made 



