" " 2.—The Goose Vultures (Gyps), ii., 73; the Tawny Goose Vulture (G. fulvus), ii., 74; the
Sparrow-hawk Goose Vulture (G. Rüppellii), ii., 74.
" " 3.—The Crested Vultures (Vultur), ii., 75; the Cowled or Brown Vulture (V. cinereus), ii., 75;
the Crested Vulture (Vultur or Lophogyps occipitalis), ii., 76.
" " 4.—The Eared Vultures (Otogyps), ii., 76; the Eared Vulture (O. auricularis), ii, 77.
FAMILY X.—The Raven Vultures (Cathartæ), ii., 77.
Sub-Family 1.—The Scavenger Raven Vultures (Percnopterus), ii., 78; the Egyptian Raven Vulture (P. stercorarius), ii., 78. " " 2.—The Collared Vultures (Neophron), ii., 79; the Monk Vulture (N. pileatus), ii., 79. " " 3.—The True Raven Vultures (Cathartes), ii., 82; the Urubu (C. aura), ii., 82. " " 4.—The Crow Vultures (Coragyps), ii., 82; the Gallinazo (C. atratus), ii., 82.
FAMILY XI.—The Day Owls (Surniæ), ii., 85.
Sub-Family 1.—The Falcon Owls (Surnia), ii., 85; the Sparrow-hawk Owl (S. Ulula), ii., 85. " " 2.—The Hare Owls (Nyctea), ii., 86; the Snow Owl (N. nivea), ii., 86. " " 3.—The Stone Owls (Athene), ii., 87; the Stone Owl (Athene noctua), ii., 87. " " 4.—The Burrowing Owls (Pholeoptynx), ii., 89; the Brazilian or Rabbit Owl (P. cunicularia), ii., 90; the Prairie Owl (P. hypogæa), ii., 90. " " 5.—The Sparrow Owls (Microptynx), ii., 91; the European Sparrow Owl (M. passerina), ii., 91.
FAMILY XII.—The Eared Owls (Bubones), ii., 91.
Sub-Family 1.—The Uhus (Bubo), ii., 91; the Uhu (B. maximus), ii., 93. " " 2.—The Water Owls (Ketupa), ii., 95; the Brown Fish Owl (K. Ceylonensis), ii., 95. " " 3.—The Eared Owls (Otus), ii., 97; the Woodland Owl (O. sylvestris), ii., 97; the Marsh Owl (O. brachyotus), ii., 98. " " 4.—The Dwarf Eared Owls (Ephialtes), ii., 98; the Dwarf Eared Owl (E. Scops, or E. Carniolica), ii., 98.
FAMILY XIII.—The Nocturnal Owls (Striges), ii., 99.
Sub-Family 1.—The Tree Owls (Syrnium), ii., 99; the Tree Owl (S. aluco), ii., 99. " " 2.—The Night Owls (Nyctale), ii., 100; the Hairy-footed Night Owl (N. dasypus), ii., 100. " " 3.—The Veiled Owls (Strix), ii., 102; Kirchhoff's Owl (S. Kirchhoffii), ii., 102; the Barn Owl (S. flammea), ii., 102.
SUB-ORDER V.
THE GAPERS (HIANTES).
FAMILY I.—The Swallows (Hirundines), ii., 104.
Sub-Family 1.—The True Swallows (Cecropis), ii., 105; The Chimney Swallow (C. rustica), ii., 106; the
Senegal Swallow (C. Senegalensis), ii., 109; the Thread-tailed Swallow (C. filifera),
ii., 110.
" " 2.—The Martins (Chelidon), ii., 110; the House Martin (C. urbica), ii., 110; the Ariel (C. Ariel),
ii., 113.