ILLUSTRATIONS. 



Bobolinks. Alalc and female in breeding season 



Where Warblers Throng in Springtime 



A Marshy Glade along a Stream . 



Wood Thrush Setting. Photographed from life 



Bluebirds Building 



Immature Bluebird 



Robin. Old male in autumn 



Robin's Nest 



Wood Thrush . 



Wood Thrush. About three weeks old 



Wood Thrush's Nest 



Carolina Chickadee . 



Chickadees 



House Wren. About three 



Carolina Wren 



Catbird 



Catbird's Nest . 



Mockingbird 



Yellow Warbler. Adult male 



Yellow Warbler. 



Red-eyed Vireo 



Nest of Red-eyed Vireo. After young had flown 



Cedar Birds 



Barn Swallow . 



Cliff Swallow . 



Purple Martin . 



veeks old 



Young male 



Frontispiece 



VI 



xii 



3 

 6 



8 



lO 



1 1 



'3 



15 

 i6 



17 



19 

 21 



22 



24 



25 

 28 

 29 



30 

 31 

 II 

 35 

 36 



n 



