148 
Geese, 98, 99. 
Gizzard, 93. 
Goldfinch, American, 14 ; story of canary 
and, 20; change of color, 26; food, 
54; flocking, 71. 
Goldfinch, European, 79. 
Grouse, 58, 59, 110. 
Grouse, ruffed, 111. 
Gullet, 93. 
Gulls, 101. 
Hawks, food of, 52, 53, 126, 127 ; asleep, 
59; beaks of, 97; eyesight of, 101; 
feet of, 106. 
Heligoland, 101. 
Herons, food of, 53, 127; bills of, 97; 
story of the hearing of a heron, 103, 
104; usefulness to man, 127. 
Hummingbird, ruby-throated, absence 
of male from nest, 16; method of 
feeding young, 18. 
Hummingbirds, 15, 98. 
Identification, 137-141. 
Indigo-bird, 47. 
Instinct, 83. 
Intelligence, 83-87. 
Japan, 131. 
Jay, blue, learning to fly, 31, 32 ; storing 
food, 54; story of a mischievous, 55, 
56 ; usefulness to man, 126. 
Kindness of birds to each other, 74-77. 
Kingbird, 14, 129. 
Kingfisher, 21, 115. 
Language, 43-47. 
Legs, 92, 105, 107, 108. 
Meadowlark, 45, 119, 121. 
Migration, 61-68. 
Mockingbird, 45. 
Moulting, 25, 26, 118. 
Neck, 92. 
Nests, situations of, 9; 
10; building of, 10; 
more than once, 10, 11. 
materials of, 9, 
seldom used 
INDEX 
Nighthawk, 107. 
Norway, 131. 
Nuthatches, 18, 96, 98. 
Observation, 137-141, 145. 
Oil, 117. 
Oriole, nest of, 9, 95; getting food for 
young, 18; teaching young to fly, 33, 
34; food of, 50; affection for young, 
78; usefulness to man, 129. 
Ostrich, 24. 
Ostrich, South American, 24. 
Owl, barred, 101. 
Owls, 35 ; food of, 52, 53, 127; ears of, 
103 ; feet of, 106; usefulness to man, 
126, 127. 
Penguin, 72. 
Petrel, 110. 
Pewee, wood, 47. 
Pheebe, 35. 
Pigeons, 79, 80. 
Plumage, the nestling, 22, 23; colora- 
tion of, 23, 24, 27, 28; moulting, 25, 
26, 118; change of color without 
moulting, 26, 27, 118-120; protective 
coloration of, 120, 121; recognition 
marks in, 121, 122. 
Protection and attraction of birds, 131- 
135. 
Quail (bob-white), 44, 59. 
Redstart, American, 14. 
Regurgitation, 18, 19. 
Rhea, 24. 
Robin, American, arrival, 3; 10, 15, 17, 
18, 21; plumage of young, 23; 34; 
teaching young to bathe, 38, 39; notes 
of, 44, 45; food of, 49, 126, 127 ; roost- 
ing in flocks, 60; devotion to young, 
78; story of the intelligence of a, 84; 
102; usefulness to man, 126, 127, 129. 

Sapsucker, 85; tail of, 113. 
Shrikes, 126. 
Sleeping, 57-60. 
| Song, 14, 44-47. 
| Sparrow, chipping, 54. 


