VI BULLETIN 17 6, UNITED STATES NATIONAL MUSEUM 



Order Micuopodiiformes — Continued. 



Family Trochilidae: Hummingbirds— Continued. 



Atthis heloisa heloisa: Eeloise's hummingbird 417 



Habits 417 



Distribution 420 



Stellula calliope: Calliope hummingbird 420 



Habits 420 



Distribution 428 



Calothorax lucif er: Lucifer hummingbird 430 



Habits 430 



Distribution 432 



Amazilia tzacatl tzacatl: Rieffer's hummingbird 432 



Habits 432 



Distribution 443 



Amazilia yucatanensis chalconota: Buflf-bellied hummingbird 444 



Habits 444 



Distribution 445 



Amazilia salvini: Salvin's hummingbird 446 



Habits 446 



Hylocharis xantusi: Xantus's hummingbird 447 



Habits 447 



Distribution 451 



Hylocharis leucotis leucotis: White-eared hummingbird 452 



Habits 452 



Distribution 464 



Cynanthus latirostris: Broad-billed hummingbird 465 



Habits 465 



Distribution ^ 472 



Literature cited 475 



Index 493 



