THE ILLUSTRATIONS 



Young Anna's Hummers in Nest Frontispiece 



Western Bluebird at Entrance to Nest 0pp. page 2 



Western Sparrow-Hawk " 14 



California Screecli-Ovvl " 20 



Murres on Their Nesting-Ground " 38 



Brandt's Cormorants and Murres, Cormorants' Nests in the 



Foreground " 46 



Red-Shafted Flickers " 62 



Lewis's Woodpecker " 70 



Young Chickadees Perched Beside Their Nest-Hole . . " 82 



Black-Headed Grosbeak " 86 



California Bush-Tits on Nest " 94 



Violet-Green Swallows " 1 04 



Warbling Vireo Feeding Her Young Beside the Nest " 114 



Black-Throated Gray Warbler Feeding ^ oung .... " 120 



Young Brewer's Blackbirds on Nest " 128 



Young Bam-Owls " 134 



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