INDEX 249 



PAGE 



Nighthawk (Chordeiles virginianus) 149 



Noddy ( Anous stolidus) 119 



Nucif raga caryocatactes (Nutcracker) . (Plate 20, Fig. 118) 231 

 Numenius arguatus (European Curlew) .. (Plate 31, Fig. 



176) 113 



" borealis (Eskimo curlew) 113 



" hudsonicus (Hudsonian) 113 



" longirostris (Long-billed Curlew) 112 



Numida meleagris (Guinea Fowl) . . . (Plate 27, Fig. 154) 81 



Nutcracker (Nucif raga caryocatactes). (Plate 20, Fig. 118) 231 



Nuthatch, European (Sitta caesia) ... (Plate 21, Fig. 128) 185 



" Red-breasted (Sitta canadensis) 186 



" White-breasted (Sitta carolinensis) 185 



Nuthatches 184 



Nyctea nyctea (Snowy Owl) (Plate 5, Fig. 23) 160 



Nycticorax nycticorax naevius (Black-crowned Night 



Heron) 35 



Nyctanassa violaceus (Yellow-crowned Night Heron) .... 35 



O 



Oceanodroma leucorhoa (Leach's Petrel) .. (Plate 37, Fig. 



214) 20 



Oidemia fusca (Velvet Scoter) (Plate 36, Fig. 212) 46 



Old Squaw (Harelda hyemalis) (Plate 36, Fig. 208 47 



Olor atratus (Australian Black Swan) 54 



" buccinator (Trumpeter Swan) 55 



" columbianus (Whistling Swan) 55 



Oreortyx pictus (Mountain Partridge) 92 



Oriole, Baltimore (Icterus galbula) 191 



" Golden (Oriolus galbula) (Plate 11, Fig. 51) igo 



Orioles 190 



Ortalis vetula maccali ( Chacalacca) 79 



Ortolan (Emberiza hortulana) (Plate 16, Fig. 87) 223 



Oscines 176 



Osprey (Pandion haliaetus) (Plate 2, Fig. 6) 69 



Otis tarfa (Great Bustard) (Plate 30, Fig. 169) 98 



Ostrich (Struthio camelus) (Plate 28, Fig. 157) 5 



Otocoris alpestris ( Horned Lark) 211 



Ouzel, Ring (Merula torquatus) (Plate 11, Fig. 56) 196 



" European Water (Cinclus cinclus) (Plate 10, 



Fig. 50) 194 



Oven-bird (Seiurus aurocapillus) 205 



