APPENDIX 



streaked with black. In summer the white markings on wings and tail 

 are large and prominent, but in winter they are more restricted. This 

 common eastern bird is rare in California, where it occurs only as a 

 winter visitant. 



168. Audubon's Warbler; Dendroica auduboni (Towns.). 

 Very similar to the preceding, but throat always yellow in this species 



and always white in the myrtle warbler. Large white patches on the 

 dark wings and tail. An abundant winter visitant throughout the valleys 

 of California, breeding in the Sierra Nevada Mountains. 



169. Black-throated Gray Warbler; Dendroica nigrescens 

 (Towns.). 



Mostly black, white and gray, with only a yellow dot in front of 

 eye. Head black; back bluish gray, streaked with black; throat black, 

 and sides streaked with black; under parts white; two white streaks on 

 face. Female with black replaced by dusky markings and white slightly 

 gray in tone. Never common, breeding in Coast Mountains and Sierras, 

 migrating south through the valleys. 



170. Townsend's Warbler; Dendroica townsendi (Towns.). 

 Head black ; back olive-green, spotted or streaked with black ; breast 



bright yellow; belly white, the sides streaked with black. There is a 

 yellow mask on the face surrounding a patch of black, and a black 

 patch on the chin and throat. The female is similar, but the colors are 

 duller and the patterns more broken, the black being frequently wanting. 

 Two outer tail-feathers largely white on inner web, even in obscure 

 plumage, and a conspicuous yellow streak always present above eye. 

 Generally a rare migrant in the woodlands; nesting north of California. 



171. Hermit- Warbler ; Western Warbler ; Dendroica occidentalis 

 (Towns.). 



Head bright yellow; neck yellow, spotted with black. Above gray, 

 streaked with black; below white, grayish on sides. A conspicuous 

 triangular spot on throat. Female with sides of face yellow, the under 

 parts largely white. Inner webs of two outer tail-feathers always white, 

 and two white wing bars. A rare migrant through the valleys ; breeding, 

 but rare, in the high Sierras. 



172. Macgillivray's Warbler; Ceothlypis tolmiei (Towns.). 

 Head dark gray; back olive-green; throat and upper part of breast 



dark gray; lower parts bright yellow. A dusky or blackish spot be- 

 tween bill and eye; eyelids white. Female olive-brownish and olive- 

 greenish above, the throat and upper breast pale buff; belly yellow. A 



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