Illustrations xiii 



PACK 



Fi<:. iiJ. Female Kingbird inserting an insect in the throat of a fledgling . . 115 



FIG. 11,5. Cedar-bird's eggs with two blind and naked young thirty-six hours old . . ii.S 

 FIG. 114. The same ......... .118 



FIG. 115. The same, illustrating different phases of instinctive behavior . .118 



FIG. 1 1 6. Kingfishers twenty-four days old, posed to illustrate fearlessness, when capable 



of flight .... 119 



FIG. 117. Young Cedar-birds at nest, in characteristic attitude. Under the influence of 



fear and ready for flight. For description, see page 60 .120 



FIG. 118. Brown Thrush startled on nest . . .... . 121 



FIG. 119. Cock Robin startled by alarm call of his male ...... 122 



FIG. 120. Red-tailed Hawk worried. Instinctive attitude expressive of fear, and serving 



to inspire fear ... ..... . 123 



FIG. 121. Young Cowbird standing at nest of Magnolia Warblers, its foster parents . 124 

 Fu;. 122. Young Cowbird, as it appeared when found, completely filling the nest, having 



smothered its rightful occupants ...... .124 



FIG. 123. Male Kingbird standing at nest, and young in characteristic attitude . .126 

 FIG. 124. Female Robin, engaged in nest-cleaning 127 



FIG. 125. Female Red-eyed Vireo feeding the young . . 128 



FIG. 126. Her mate ready to inspect and clean the nest . 129 



FIG. 127. Offering food to a Chestnut-sided Warbler, tamed without a cage . . . 132 

 FIG. 128. Chestnut-sided Warbler family, the male above the nest on which sits his 



brooding mate .... '33 



FIG. 129. Female Chestnut-sided Warbler taking a peep at the nest, which then contained 



eggs or young birds barely hatched . 134 



FIG. 130. The same bird inspecting her young after feeding them . 135 



