610 
Icterinae, 579 Ff. 
Icteropsis, 577 
Icterus, 580, 581; JZ. baltimore, 580, 581, 
581 ; J. vulgaris, 581 
Ictinia, 146 ; I. mississippiensis, 171 ; I. 
plumbea, 171 
Ignoble, of Falconidae, 146 
Tiwi, 564 
Tlium, 6, 9, 9 
Immature plumage of Birds generally, 4 
Impervious nostrils, 11 
Incisura ischiadica, 9 
Index finger, 9 
Indian Region, 15 f. 
Indicator, 451 f. ; I. archipelagicus, 452 ; 
I, major, 452; I. minor, 452 ; habit of 
guiding to bees’ nests, 452 f. ; Z. sparr- 
mani, 452; I. xanthonotus, 452 
Indicatorinae, 448, 451; habits, 452 f. 
Ingluvies, 12 
Inocotis, 100 ; I. papillosus, 102 
Insessores, 466 
Integument, 2 n. 
Intestines, 12 
Intrathoracic convolutions of trachea—see 
Trachea 
Lodopleura, 479, 480 
Tole, 506 
Ipocrantor, 463 ; I. magellanicus, 464 
Irena, 504-506; I. erinigera, 504 
Tridescence in feathers, cause of, 3 
Tridornis, 575 
Tron-smith, 449 
Irregular migration, 17 f. 
Trrisor, 397; 1. bollii, 397; I. erythro- 
rhynchus, 397; I. jacksoni, 397; I. 
viridis, 397 
Trrisorinae, 390, 397 ; habits, 397 
Trruptions of Sand-Grouse, 322, 324, 325 
Ischium, 9, 9 
Island Hen, 244 
Ispidina, 386 ; I. madagascariensis, 386 
Ithagenes, 198, 200, 217 ; buries itself in 
snow, 218 ; /. cruentus, 217 ; I. geoffroyi, 
218; J. sinensis, 218 
Ixocincla, 504, 505 
Tynginae, 457, 464 f. 
Iyngipicus, 458, 462 ; I. obsoletus, 462 
Iynz aequatorialis, 465; I. pectoralis, 
465 ; L. pulchricollis, 465; I. torquilla, 
465, 465 
Jabiru, 98 
Jacamar, 445 f; habits, 446 
Jacamaralecyon, 445, 446; J. tridactyla, 
446 
Jacamerops, 445; J. grandis, 445, 446 
Jacana, 268, 297 f.; habits, 299 f.; 
Indian, 299 
Jackass, 57, 384, 386 
Jackdaw, 553-556 
Jacobin, 486 
INDEX 
Jaws, 5 f., 11 f. 
Jay, 552-556; Blue, 554, 555; Green, 
554 ; Siberian, 554 
Jean-le-blane, 153 
Jenner, on Cuckoo, 354; 
Solitaire, 331 
Jerdon, on Indian Darter, 81 ; on Jnocotis, 
100 n. ; on Pelican, 85 n. 
Johnny Rook, 152 
Jugal, 11 
Jugulum, 20 
Junco, 585 
Jungle-fowl, Red, 208 f. ; Grey, 209 
Jurassic System, Birds from, 2 
on bones of 
Kagu, 243, 263 f., 264: 
operculum of nostrils, 11 
Kakapo, 366, 366 ; breast-bone, 7 
Kallege, 213 
Kea, 365, 374, 375 
Keel of breast-bone, 6, 7 
Kelp-Hen, 247 ; -Pigeon, 293 
Kerr, J. G., on Hrismatura, 118 n. 
Kestrel, 147, 148, 175-177 ; Lesser, 175 
Ketupa, 398-401; KK. ceylonensis, 414 ; 
K. flavipes, 414; KH. javanensis, 414 
Kill-deer, 274 
King-bird, 474 
Kingfisher, 376, 382 ; habits, 383 ; Belted, 
887; Racquet-tailed, 385 ; Stork-billed, 
387; Water-, 382, 383; Wood-, 382, 384 
Kirk, on Honey-guide, 452 
Kirombo, 376, 378, 379 
Kite, 146, 148, 155, 164, 165; habits, 168 f.; 
Awl-billed, 171; Black, 170; Black- 
winged, 171; Brahminy, 168; Ever- 
glade, 171; Mississippi, 171; Pariah, 
170; Red, 168 f., 169 ; Swallow-tailed, 
170; Whistling, 168 
Kittiwake, 305 ; see Gull, Kittiwake 
Kiwi, 26, 38 f., 39; breast-bone, 7 ; 
feathers, 41 ; structure, etc., 38 f. 
Knob on bill, 12; of Anatidae, 111; of 
Pigeons, 325 
Knot, 281 
Koél (=Coél), 356 
habits, 265 ; 
Labyrinth, 138, 113 
Lacrymal, 11 
Lagopus, 199, 200, 202, 204; fossil, 241 ; 
L. albus, 238 f.; L. hemileucurus, 240 ; 
L. hyperboreus, 240; L. leucurus, 240 ; 
L. mutus, 240; L. rupestris, 240; L. 
scoticus, 238 f., 239 
Lalage, 525, 526 
Lamellae, of bill, 12 ; on bill of Anastomus, 
95; on bill of Anatidae, 111 f. ; on bill 
of Flamingoes, 105 ; on bill of Petrels, 60 
Lamenting Bird, 257 
Laminiplantar, 468, 496 
Limmergeier, 146, 147, 150, 150, 151; 
habits, 151 
