Appendix, 



variety. Head and neck ashy gray, generally 

 with a concealed crown-patch of chestnut; back 

 olive-green ; below entirely bright yellow. 

 Female similar, but duller. Never very com- 

 mon, but breeds in the Sierra Nevada Moun- 



i6o. Lutescent Warbler; Helminthophila celata 

 lutes c ens Ridgw. 



This is the western race of the orange-crowned 

 warbler. Similar to the preceding, but head 

 olive-green like back, instead of gray, and lower 

 parts greenish yellow. An obscure crown-patch 

 of orange brown. The female is dull olive- 

 greenish, paler below. This is a common and 

 generally distributed species throughout the 

 State, but rather secluded in its haunts, living 

 in the shrubbery of the canons. 



i6i. Yellow Warbler, Summer Warbler; Den- 

 droica astiva (Gmel. ). 



Sometimes called, without reason, *« wild canary." 

 A beautiful and familiar species. Above bright 

 yellow, the back tinged with olive-green. 

 Below bright yellow, streaked more or less dis- 

 tinctly with light brown. Female similar, but 

 duller, without the streaks below. The female 

 lutescent warbler and female summer warbler 

 are often very similar in color. The former 

 species, however, has a dull grayish brown tail, 

 unvaried, while the latter bird has the outer 

 webs grayish brown and the inner webs yellow. 

 An abundant summer resident everywhere, 

 nesting in villages as well as in the woodland. 



