LIST OF ILLUSTRATIONS 



Wood-thrush family photographed thirty feet from the ground. 



The young are ready to leave their nest . . . Frontispiece 



FACING PAGE 



Woodcock on its nest. The photograph was made with a 

 premo lens, ray-filter, isochromatic plate ; exposure forty 



seconds. Made during a heavy shower . . , . . 22 



Young blue jays getting ready to leave their nest . , '. . . 24 



Oven-bird's nest . . . V , . ..'*.. . . . 26 



Long-billed marsh-wren's nest . . . ... . ... 28 



Nest of downy woodpecker. A hole was cut in the branch 



in order to show the position of the eggs 32 



Young crows in nest . . . . V '-. * V- "*- ... . 38 



Wood-thrush on its nest. Exposure about four seconds with 



single combination of Goerz lens 42 



Worm-eating warbler and young. Illustrating the tameness of 



a comparatively rare bird 48 



Blue-winged warbler and her young . 50 



Chipping sparrow feeding its young. 50 



Worm-eating warbler family 52 



Indigo-bird about to feed her young 54 



Indigo-bird feeding her young 54 



Field-sparrow feeding its young . 56 



XI 



