774 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



ghiesbrechti, Urubitinga, 383. 

 ghiesbrechtii, Asturina, 381, 383. 

 ghiesbreghti, Buteo, 382. 



Leucopternis, 377, 378, 381-383. 

 Leucopternis albicollis, 378, 379, 381 



383. 

 Leucopternis ghiesbreghti, 383. 

 Urubitinga, 381, 383. 

 ghiesbreghtii. Buteo, 380, 382. 

 gilvicollis, Clamosocircus, 565. 

 Climacocercus, 565. 

 IMicrastur, 564, 5G5, 576, 577. 

 Micrastur ruficollis, 565. 

 Sparvius, 565, 576, 577. 

 Glaucopterix, 498, 499. 

 Glaucopteryx, 498. 

 glaucus, Elanus, 74. 



Falco, 74. 

 glitschi, Aquila, 452. 

 Goshawk, American, 150. 

 Queen Charlotte, 162, 

 Goshawks, 140. 



gracilis, Buteo magnirostris, 215, 344. 

 Falco, 516, 521, 522. 

 Gerauospiza, 517, 521, 522. 

 Geranospiza gracilis, 518. 

 Rupornis, 343, 344. 

 Rupornis magnirostris, 344. 

 Rupornis ruficaucia, 343. 

 Grand aigle de la Guiane Mauduyt, 436. 

 grebnitzkii, Falco gyrfalco, 648. 

 Falco rusticolus, 648. 

 Hierofalco, 648. 

 griseicauda, Rupornis, 340, 341, 343. 

 Rupornis magnirostris, 340, 342, 



343, 346. 

 Rupornis ruficauda, 340, 342. 

 griseocauda, Asturina magnirostris, 342. 

 Buteo magnirostris, 215, 338, 340, 



341, 344, 345, 347, 348. 

 Buteo (Rupornis) magnirostris, 340, 



341. 

 Rupornis, 340. 



Rupornis magnirostris, 340, 344, 346. 

 griseus, Falco, 721. 

 groenlandica, Aquila, 483. 



HaUaeetus albicilla, 477, 482. 

 groenlandicus, Falco, 645. 

 Falco gyrfalco, 645. 

 Haliacetus albicilla, 483. 

 Haliaetos, 483. 

 Haliaetus, 483. 

 Haliaetus albicilla, 483. 

 gruberi, Onychotes, 211. 

 Gryfalco, 615. 

 gryffus, Vultur, 11. 

 Gryphinae, 7. 

 gryphus, Cathartes, 59. 

 Sarcoramphus, 59. 

 Vultur, 8, 10, 11, 52, 53, 59. 

 Gryphus, 10. 



californianus, 58. 

 Grypomorphae, 3. 



guadalupensis, Falco sparverius, 739. 

 guatemalensis, Cerchneis sparveria, 739. 

 Cerchneis sparverius, 739. 



guatemalensis, Daptrius americanus, 581. 

 582, 584, 585. 

 Daptrius (Ibycter) americanus, 584. 

 Ibycter americanus, 584. 

 guatimalensis, Daptrius americanus. 

 584. 

 Ibycter americanus, 584. 

 guerilla, Clamosocircus guerilla, 576. 

 Chmacocercus, 576, 578. 

 Micrastur, 564, 576, 577, 

 Micrastur guerilla, 576. 

 Micrastur ruficollis, 566, 574, 576. 

 577, 578. 

 guianensisj Astur, 427. 

 Asturina, 427. 



Asturina ("Thrasaetus), 427. 

 Falco, 426, 427, 429. 

 Morphnus, 422-424, 426, 429, 450. 

 Morphnus guianensis, 427. 

 Odontriorchis palliatus, 100. 

 gundlachi, Accipiter, 148, 180, 181. 

 Accipiter cooperi, 181. 

 Buteogallus, 409. 

 Buteogallus anthracinus, 409. 

 Hipomorphnus, 408. 

 Hypomorphnus, 404, 408. 

 Nisus, 181. 

 Nisus cooperi, 181. 

 Urubitinga, 408. 

 gundlachii, Accipiter, 181. 



Accipiter (Cooperastur), 181. 

 Buteo, 408. 



Buteogallus, 397, 398, 406, 409. 

 Cooperastur, 181. 

 Hypomorphnus, 408. 

 Urubitinga, 408. 

 Urbutinga anthracina, 408. 

 guttata, Cerchneis, 722. 

 gutturalis, Buteo, 306. 

 guyanensis, Astur, 427. 



Falco, 421. 

 gymnacephalus, Daptrius, 587. 

 gymnocephalus, Ibycter, 587. 

 Gymnogenys, 516. 

 Gymnogyps, 10, 51. 



californianus, 8, 53, 54, 56. 

 californicus, 59. 

 Gymnops, 580. 



aquilinus, 587. 

 aterrimas, 582. 

 aterrimus, 582. 

 fasciatus, 580, 582. 

 strigilatus, 582, 591. 

 Gypaetidae, 60. 

 Gypaetinae, 64. 

 Gypaetos, 30. 



harpyja, 434. 

 Gypaetus, 8, 63. 



coronatus, 436. 

 Gypagos, 11. 

 Gypagus, 11. 



californianus, 59. 

 papa, 14. 

 Gyparchus, 11 

 papa, 17. 

 Gypo-Falconidae, 60. 



