List of Illustrations 



FACING PAGE 



Red-eyed Vireo's Nest in Which a Cowbird's Egg is Hid- 

 den BY A Floor having been Placed over It . 13 

 The Same Nest with the Rightful Owner's Egg . . 13 

 A Section of the Same Nest, Showing the Position of 



the Two Eggs 13 



White-eyed Vireo on Nest 14 



Young Baltimore Orioles and Nest . . . .15 



Ruffed Grouse on Nest 18 



Young Redstarts, Day of Leaving Nest . . .18 



Family of Oven-birds on the Day They Left Their Nest 20 

 Family of Young Chipping Sparrows Which Have Just 



Left Their Nest 20 



Young Red-eyed Vireo the Day after Leaving its Nest 22 

 Young Yellow-billed Cuckoos, Twenty-four Hours be- 

 fore Leaving Nest 22 



Family of Blue-winged Warblers, Showing the Young 



ON THE Day of Leaving Their Nest ... 24 

 Male Rose-breasted Grosbeak, One Year Old, Taking 



Sun Bath 27 



Bob-white's Nest Full of Eggs (Colour) . . . )6 

 Nest and Eggs of Bobolink, on the Ground in a 



Meadow 40 



Vesper Sparrow's Nest 42 



Plate B: Common Eggs (Colour) 44 



Nest and Eggs of Field Sparrow, on Ground in Field 



OF Dead Grass 46 



