INDEX 
617 
NV. minutus, 289; N. phaeopus, 288 f. ; 
NV. tahitiensis, 270, 289; N. tenwi- 
rostris, 288 ; N. variegatus, 289 
Numida, 201, 204 f.; WN. cornuta, 205 ; 
NV. coronata, 205; N. marungensis, 205; 
NV. meleagris, 205; N. mitrata, 205; N. 
ptilorhyncha, 205, 206; NN. reichenowi, 
205 
Numidinae, 198-201, 204 ; habits, 205 f. 
Nunlet, 447 
Nutcracker, 558, 555, 556 
Nuthatch, 536 f., 537 ; habits, 538 
Nutmeg-bird, 577 
Nyctala, 399, 4013 WV. acadica, 405; WN. 
tengmalmi, 405 
Nyctea, 398, 403; fossil, 415; 1. 
diaca, 400, 412 
Nycterodius violaceus, 90 
Nyctibiinae, 415, 416, 418 
Nyctibius, 415, 417, 418 
Nycticorax, 87, 88, 90, 265; young, 94; 
NN. caledonicus, 90; N. goisagi, 90; N. 
griseus, 90; N. leuconotus, 90; N. 
megacephalus, fossil, 95; WN. naevius, 
90; NV. pauper, 90; N. pileatus, 90; 
NV. sibilatriz, 90; N. violaceus, 90 
Nyctidromus, 415, 416 
Nyctiornis, 387-3889 ; N. amictus, 389 
Nymphicus, 364, 365 ; WV. weacensis, 363 
Nyroca, habits, 123; fossil, 186; . 
africana, 122, .123 3; WN. americana, 
122; WV. australis, 122, 123; WN. baeri, 
122; WV. brunnea, 123; N. ferina, 122 ; 
NV. innotata, 122; WN. nation, 123 ; LV. 
vallisneria, 122 
SCaN- 
Oar-feathers, 21 
Oates, on Sturnidae, 559 
Occiput, 20 
Oceanites, 60, 62, 65 ; O. oceanicus, 65 
Oceanitinae, 59, 60, 65 
Oceanodroma, 61, 62, 67 f.; O. crypto- 
leucura, 68; O. furcata, 68 ; O. hornbyi, 
68; O. leucorrhoa, 68 
Ochromela, 509 
Ocreate metatarsus, 60 
Ocreated, 10 
Ocydromus, 244-247 ; O. australis, 247 ; 
O. earli, 247 ; O. fuscus, 247 ; O. grey, 
247; O. hectori, 247; O. wtsignis, 
fossil, 251 ; O. sylvestris, 247 
Ocyphaps, 326 ; O. lophotes, 337 
Odontoglossae, 105 
Odontoleae, 45 f.; a subdivision of Neor- 
nithes, 23 f. 
Odontophorinae, 198, 199, 202, 204, 230 f. 
Odontophorus, 199, 203, 232; O. guia- 
nensis, 232 
Odontopteryx toliapica, fossil, 86 
Odontornithes, 2, 45 f. 
Odontotormae, 45 
Oedemia, 111 ; habits, 120 ; O. americana, 
119; O. carbo, 120; O. deglandi, 120; 
O. fusca, 118, 119 f.; O: nigra, 119; O. 
perspicillata, 113, 120 
Oedicnemidae, 268, 269, 297 
Oedicnemus, 269, 270; O. affinis, 297 ; O. 
bistriatus, 297; O. capensis, 297; O. 
dominicensis, 297 n.; O. grallarius, 
297 ; O. scolopax, 297 3 O. senegalensis, 
297; O. superciliaris, 297; O. vermi- 
culatus, 297 
Oena, 326, 827 ; O. capensis, 339 
Oesophagus, 12 
Oestrelata, 66; O. brevipes, 66 ; O. haesi- 
tata, 66 
Oil-bird, 419 
Oil-glands, 21 
Oiseau-mouche, 426 
Old Squaw, 121 
Oligomyodae, 466 
Oligura, 502 
Oncostoma, 473 
One-wattled Cassowary, 35 
Onychognathus, 559 
Onychotes gruberi, 165 
0-0, 564, 567, 568 
Open-bill, 97 
Operculum of nostrils, 11; in Caprimul- 
gidae, 415; in Columbae, 325; in 
Plovers, 270 ; in Procellariidae, 60 ; in 
Rhinochetus, 264 
Opisthocoelous, 6 
Opisthocomi, 186, 241 
Opisthocomidae, 186, 241 
Opisthocomus, 186, 241 ; affinity to Cuculi. 
241; O. cristatus, 241, 242 
Opisthodactylus, 45 
Opisthoprora euryptera, 437 
Ophrysia superciliosa, 218 
Orange colour in Birds, its nature, 3 n. 
Orbit, 20 
Orchesticus, 575 
dpxidos, 426 
Orchilus ecaudatus, 473 
Oreicola, 511 
Oreocorys, 498 
Oreoeca, 532, 534; O. cristata, 567 n. 
Oreomyza, 562, 563 
Oreonympha nobilis, 436 
Oreophasinae, 194, 195, 198 
Oreophasis, 195; O. derbianus, 198 
Oreophilus ruficollis, 273 
Oreopsittacus, 363 
Oreortyx pictus, 230 f. 
Oreoscoptes, 514, 515, 519 
Oreotrochilus, 431 f., 436; O. chimborazo, 
428 ; O. pichincha, 428, 430, 436 
Organ-bird, 522, 532 
Oriental Region, 17 
Origma, 517, 518 
Oriole, 542 f.; habits, 543; American, 
542,579 ; Baltimore, 580, 581; Golden, 
542, 542 
