Index. 145 



Night Hawk, Bull-ba1 (Chordeiles virginianus,Gmel.), the feeding of, 15, 16; the rearing of , 80-85 ; ' 



and incubation of. So; behavior of, during incubation, .so: hatching of. So: the yoir 

 So-,s'5; expression of fear in old and young of, So, Sr: eorallinir the young of, Si; eyes and 

 eyelids in young of. So; brooding habits of. So, 82, 85; call and alarm notes of. Si, 82; feeding 

 habits in y< >ung ol. Si. 82 ; illumination of throat of, by phosphorescent insects, 82 ; encounter 

 of young of, with snake, Si ; Hedging of. 85. 



Xorthticl.l (X. II. i, breeding of Cedar-birds at, 52; spring Bluebirds at, 71; nesting of Kingfisher at, 86. 

 (See Preface i 



Xuthatehes, lameness and habits of, 127, 128. 



O. 



Objections i<> method eonsidered, 13-15. 



Observations from tent, the best time for, 7, S. 



Oriole, Baltimore (Icterus g^il/nila, I. inn.}, nest of, iS; call-notes of young of, iS; removal of nesttn<: 



bough of, ii): behavior of, 19; food brought 1" young by, icj; rate of feeding at nest of, iq; 



exercise of the fledglings of, 20; flight of young of, from the nest, 20; use of tent at nest of, 19; 



cleaning instinct in, 104; lack of discrimination in young of , 121; summoned by alarm of Robin, 



122. 



Osprey, the American, or Fish Hawk (7\?;;, //<>>; haliaftus Ctimlinrnsis, Gnicl.), nests and nesting habits 

 of, at Plum Island (X. Y.), 115, 134, 15,; at Bristol (R. I.), 115, 116; nest of, on cart-wheel 

 on top of pole, 116; actions of, upon loss of mate, 116; tameness of, 1.34, 135. 



Owls, filthiness of nests of, 108; change of feeding habits in, 116. 



P. 



Parasites on nest and young of Cedar-bird, 107. 



Partridges, eggs and young of, i 17. 



Patience required in the naturalist's work, 13, 14. 



1'attcn, William, 114. 



Peep-holes in observation tent, the form and size of, 31. 



Phoebe, taming of, 133, 134. 



Phosphorescence, display of, in Xight Hawk, 82. 



Photography of birds, method of, xvii; the future of. xviii; a new method of. based on animal instinct, 

 xviii; new method described, 1-16; its conditions, i; its principles analyzed, 3; mode of 

 procedure in, 7; precautions in use of, S; extent of application of, 11-13; objections to, con- 

 sidered, 13-15; advantages of, 15-16; illustrations of, 17-28; the tools of, 29-35; of birds 

 after they have been tamed, in Robin, 131, in Chestnut-sided Warbler, i ^. 



Pigeon, English Wood, habit of, 137; domestic, tameability of, 125; wild passenger, condition of nest- 

 ing site in, 107. 



Plates, photographic, exposure of, 34; deterioration of, 34 ; carriage and care of, 34. 



Plover, eggs and young of, 117. 



Plum Island (N. Y.), In-ceding and habits of Osprey at, i 15, 134, 135. 



Polygamy in Bluebirds, 72. 



Popular natural history, defects of, xv, xvi; illustrations of, xviii, xix. 



Praecoccs, i i 7. 



Precautions to be observed in change' of nesting site, 8. 



Precision in instinctive acts of young birds, 67. 



Preening instinct in young Vireos, 65. 



Principles of new method of bird-study, 3. 



Pugnacity, the instinct of, 4; in Kingbirds, 22; in Robins. 40, 134; in Red-eyed Vireos, 67; in young 

 of Kingfisher, 89; in domestic fowl, 134; in Tropic Bird, 134. 



R. 



Reaction of young bird to stimulus of food, 55. 



Redstart, flight of young of, from nest. 118; attraeled by Robin's alarm, 123. 



