Affections,1,78-82.Air-sacs,1,92,94.Alaudidæ,2,131,202.Alcedinidæ,2,170,203.Ampelidæ,2,63,200.Arrival in spring,1,3,4.Attraction and Protection of Birds,1,131-135.Audubon, John James,1,60.Auks,1,110.Barn Owl Family,2,185,204.Beak,1,95-97.Blackbird, Brewer's,2,113.Blackbird, Crow,1,72;2,110.Blackbird, Red-winged,2,94;portrait,2,94.Blackbird Family,2,94,201.Blackbirds,1,3,126,129.Bluebird, arrival,1,3;getting food for young,17;teaching young to fly,37,38;feeding,50;2,5;portrait,1,38.Bobolink, nest of,1,9;one of the first birds to stop singing in summer,47;the fall migration,61,62.Bob-white (quail),1,44,59.Body, shape of,1,91.Bolles, Frank, his pet owl,1,101,116;his story of a heron,103,104.Bones,1,92,94.Books about birds,1,142-144.Brooding,1,13-16.Bubonidæ,2,178,204.Bunting, Towhee,orChewink,1,76,77;2,84;portrait,1,76.Bush-Tits,2,198.Butcher-birds,2,59.Buzzard, Turkey,1,50,51;2,194.Canary,1,20,57,81.Caprimulgidæ,2,155,203.Cardinal,1,69,132;2,88;portrait,2,90.Catbird, food of,1,49,126;jerking the tail,113;2,37,125;portrait,2,36.Cathartidæ,2,194,204.Cave-dwelling Family,2,30,199.Cedar-bird, feeding young,1,19;story of affection for young,78;usefulness to man,126,129;2,63;portrait,1,126.Certhiidæ,2,27,198.Chat, Long-tailed,2,53.Chat, Yellow-breasted,2,52;portrait,2,52.Chewink,1,76,77;2,84;portrait,1,76.Chickadee, defending eggs,1,11,12;getting food for young,18;as an eater of insects' eggs,68,126;affection for young,78;2,22;portrait,2,22.Chickadee, Mountain,2,22.Chickadees,2,22.Chuck-will's-widow,2,157.Cinclidæ,2,42,199.Color in feathers,1,120.See alsoPlumage.Cormorant,1,94.Corvidæ,2,117,202.Cowbird,2,51,98.Creeper, Brown,2,27;portrait,2,28.Creeper Family,2,27,198.Creepers,2,19.Crop,1,93.Crossbill, AmericanorRed,2,91.Crossbill, White-winged,2,92.Crossbills,1,97;2,91.Crow, American, punishing a young one,1,37;sleeping in flocks,59,60;story of an affectionate,80;usefulness to men,126;2,40,117.Crow Family,2,117,202.Cuckoo, Black-billed,2,174.Cuckoo, California,2,174.Cuckoo, Yellow-billed,2,174;portrait,2,174.Cuckoo Family,2,174,203.Cuculidæ,2,174,203.Dipper, American,2,42;portrait,2,42.Dipper Family,2,42,199.Down, the first plumage,1,15,21,22,115.Ducks,1,97,115.Eagle, Bald,2,189,192.Ears,1,102-104.Eggs, beauty of,1,11;the mother's care,11,12;incubation and hatching of,13-15.Eyes,1,100-102.Falconidæ,2,188,204.Feathers, first appearance on the young bird,1,22;of the wing,109-111;of the tail,112,113;the various kinds of,114,115;expression of emotions by,116;the birds' care of,116,117.See alsoPlumage.Feet,1,92,105-108.Finches,2,82,201.Fish, birds and dead,1,86,87.Flicker, method of feeding young,1,18;food of,85,127;color markings,121;2,161;portrait,1,86.Flicker, Red-shafted,2,161,162.Flycatcher, Least,2,136.Flycatcher, Shining Crested,2,67.Flycatching Family,2,135,202.Flying,1,93.Food,1,48;-55;in winter,67-69,134;in its relation to the welfare of man,125-130.Frigate-bird,1,110.Fringillidæ,2,80,201.Geese,1,98,99.Gizzard,1,93.Gnatcatcher, Blue-gray,2,16.Gnatcatchers,2,198.Goatsucker Family,2,155,203.Goldfinch, American,1,14;story of canary and,20;change of color,26;food,54;flocking,71;2,82;portrait,1,26.Goldfinch, European,1,79.Goldfinch, Willow,2,84.Grackle, Bronzed,2,112.Grackle, Purple,2,112.Grackles,2,110.Grosbeak, Black-headed,2,88.Grosbeak, Cardinal,1,69,132;2,88;portrait,2,90.Grosbeak, Rose-breasted,2,86;portrait,2,86.Grosbeaks,2,86.Grouse,1,58,59,110.Grouse, Ruffed,1,111.Gullet,1,93.Gulls,1,101.Hawk, American Sparrow,2,189;portrait,2,188.Hawk, Fish,2,190;portrait,2,192.Hawk and Eagle Family,2,188,204.Hawks, food of,1,52,53,126,127;asleep,59;beaks of,97;eyesight of,101;feet of,106.Heligoland,1,101.Heron, Great Blue,2,114.Herons, food of,1,53,127;bills of,97;story of the hearing of a heron,103,104;usefulness to man,127.Hirundinidæ,2,69,201.Humming Family,2,143,202.Hummingbird, Anna's,2,149.Hummingbird, Ruby-throated, absence of male from nest,1,16;method of feeding young,18;2,144;portrait,1,18.Hummingbirds,1,15,98.Icteridæ,2,94,201.Identification,1,137-141.Indigo-bird,1,47;portrait,1,46.Instinct,1,83.Intelligence,1,83-87.Japan,1,131.Jay, Blue, learning to fly,1,31,32;storing food,54;story of a mischievous,55,56;usefulness to man,126;2,113,121;portrait,2,122.Jay, Steller's,2,126.Jays,2,117,202.Kindness of birds to one another,1,74-77.Kingbird,1,14,129;2,113,136;portrait,2,136.Kingbird, Arkansas,2,140.Kingfisher, Belted,2,170;portrait,2,170.Kingfisher Family,2,170,203.Kingfishers,1,21,115.Kinglet, Ruby-crowned,2,14;portrait,2,14.Kinglet and Gnatcatcher Family,2,14,197.Language,1,43-47.Laniidæ,2,59,200.Lark, Desert Horned, portrait,2,132.Lark, Horned,2,131.Lark, Old-Field.SeeMeadowlark.Lark, Prairie Horned,2,131.Lark, Shore,2,131.Lark Family,2,131,202.Legs,1,92,105,107,108.Magpie, American,2,126;portrait,2,126.Magpie, Yellow-billed,2,126.Magpies,2,117.Martin, Purple,2,72.Meadowlark,1,45,119,121;2,97,100;portrait,2,100.Meadowlark, Western,2,102.Meadow Starlings,2,100.Micropodidæ,2,150,202.Migration,1,61-68.Mniotiltidæ,2,49,200.Mocking Thrushes,2,34,199.Mockingbird,1,45;2,9,34,195.Motacillidæ,2,46,199.Moulting,1,25,26,118.Neck,1,92.Nests, situations of,1,9;materials of,9,10;building of,10;seldom used more than once,10,11.Nighthawk,1,107;2,158;portrait,2,158.Norway,1,131.Nuthatch, European,2,21.Nuthatch, Red-breasted,2,20.Nuthatch, Slender-billed,2,18.Nuthatch, White-breasted,2,18;portrait,1,96.Nuthatch and Chickadee Family,2,18,198.Nuthatches,1,18,96,98.Observation,1,137;-141,145.Oil,1,117.Oriole, Arizona Hooded,2,108.Oriole, Baltimore, nest of,1,9,95;2,104;portrait,1,10.Oriole, Orchard,2,107.Orioles, getting food for young,1,18;teaching young to fly,33,34;food of,50;affection for young,78;usefulness to man,129;2,104.Osprey, American,2,190;portrait,2,192.Ostrich,1,