420 Cooke, The Birds of Colorado. [g|* 



Dendroica magnolia. Magnolia Warbler. — One, May 12, 1905, 

 near Springfield (Warren). One May 22, 1907, Holly (Smith). Two, 

 May 21, 1909, near Wray. 



Dendroica graciae. Grace's Warbler. — Several May, 1907, Pagosa 

 Springs (Cary). 



Dendroica nigrescens. Black-throated Gray Warbler. — One July, 

 1892, Trinidad (Fisher); several September 4-8, 1906, Douglas Spring, 

 Routt County (Cary). The most northern record in western Colorado. 



Dendroica townsendi. Townsend's Warbler. — One August 14, 1894, 

 Estes Park (Fisher);" one August 24, 1906, near Bagg's Crossing, Routt 

 County (Cary). 



Seiurus aurocapillus. Ovenbird. — Seen May 18, 1906, and September 

 18, 1906, at Yuma, (Patten). 



Oporornis tolmiei. Macgillivray's Warbler. — Several May, 1905. 

 Springfield (Warren). Noted at Yuma each May for the last four years 

 (Patten). Sterling, June 1-2, 1909 (Cary). 



Geothlypis trichas occidentalis. Western Yellow- throat. — One 

 July, 1905, in Middle Park near Hot Sulphur Springs (Cary). This is a 

 higher altitude than usual. 



[Icteria virens. Yellow-breasted Chat. — This form was admitted 

 to the original list through a misunderstanding. It has no Colorado record 

 and should be dropped.] 



Setophaga ruticilla. Redstart. — A few August 25-27, 1906, near 

 Bagg's Crossing of the Snake River, Routt County (Cary); several May 

 17-24, 1908, Salida (Frey). 



Oroscoptes montanus. Mountain Mockingbird. — One. April 21, 1905, 

 near Springfield (Warren); one October 10. 1904, Yuma (Patten). 



Mimus polyglottos leucopterus. Western Mockingbird. — Common 

 on the plains of southeastern Colorado, north to Yuma (Patten); abundant 

 Junt, 1906, at Pawnee Buttes, northeastern Weld County (Henderson). 

 Common at Sterling in 1909 (Cary). One May 23, 1907, near McCoy at 

 6800 feet altitude — the most northwestern record (Warren). 



Dumetella carolinensis. Catbird. — A few breed near Fort Lewis, 

 La Plata County; one at Mancos May 3, 1906 (Gilman). 



Catherpes mexicanus conspersus. Canon Wren. — Observed by the 

 parties of the Biological Survey in many localities in southwestern Colorado, 

 east to the plains and north to the Grand River. The most northwestern 

 record is that of the one seen September 12. 1906, near Rangely, Rio Blanco 

 County (Cary). Along the southern part of the State it has been traced 

 east to Baca County, where one was seen November 27. 1907. at Gaume's 

 Ranch (Cary) and near Cheyenne Wells, one November 22, 1906 (Warren). 

 The most northern records east of the mountains are of those obtained at 

 Golden February and October, 1907 (Test) and at Longmont, October 20, 

 1907 (Burnett). 



Thryomanes bewicki bairdi. Baird's Wren. — Records for this species 

 have gradually accumulated until now it is known to be more common in 



