COLOR PLATES 



PLATE 



1. Western Bluebird, Mountain Bluebird 



Frontispiece 



FACING 

 PAGE 



2. Western Robin, Varied Thrush 4 

 :J. Russet-backed Thrush, Sierra Hermit 



Thrush ....... g 



4. Western Golden-crowned Kinglet, Ruby- 



crowned Kinglet ..... 12 



5. Western House Wren, Seattle Wren 16 



6. Western Winter Wren, Tule Wren . 18 



7. Golden Pileolated Warbler, Pacific Yel- 



low-throat, Californl^ Yellow Warbler 22 



8. Macgillivray Warbler, Lutescent Warb- 



ler, Black-throated Gray Warbler 26 



9. Audubon Warbler, Long-tailed Chat 28 



10. Hermit Warbler, Townsend Warbler 30 



11. Western Warbling Vireo, Cassin Vireo 34 



12. Oregon Chickadee, Chestnut-backed Chick- 



adee, California Creeper . . .38 



13. Slender-billed Nuthatch, Red-breasted 



Nuthatch, Pygmy Nuthatch ... 40 



14. Bush-tit, Coast Wren-tit . .44 



15. Dipper ....... 46 



16. Rufous Hummingbird .... 50 



17. Vaux Swift, Pacific Nighthawk . 52 



18. Northern Violet-green Swallow, Tree 



Swallow, Cliff Swallow ... 56 



19. Western Martin, Barn Swallow, Rough- 



winged Swallow ..... 58 



20. Olive-sided Flycatcher, Traill Fly- 



catcher, Western Wood Pewee 62 



XV 



