ILLUSTRATIONS 



Pair of adult Great Blue Herons on nest . . . Frontispiece 



FACING PAGE 



Snowy Egret on nest, showing aigrette plumes . . . . 16 



Blue-winged Warbler feeding young 20 



Song Sparrow about to enter nest 20 



Oven-Bird leaving nest 26 



Mrs. Bob-White leaving nest 26 



Northern Yellow-Throat, after feeding young 32 



Ruby-Throated Hummer alighting on nest 32 



Remarkably tame female Scarlet Tanager 40 



Nest of Veery, showing how to photograph a nest ... 40 



Male Rose-Breasted Grosbeak 50 



" The best-known door-yard bird is doubtless the Robin " . 50 

 Laughing Gulls on Breton Island Reservation, La. . . .56 



Brown Thrasher attacking the camera man 64 



Study of young Cedar-Birds 64 



Bluebird entering nest to feed young 70 



Female Redstart feeding young 70 



Woodcock dabbling in margins 78 



Woodcock running, showing "flag" 78 



Nest of Blue-Winged Warbler 88 



Nest of Northern Yellow-Throat .... .88 



