Operation RubyThroat - A cross-disciplinary international research and education project in which students, teachers, and others collaborate to study behavior and distribution of the Ruby-throated Hummingbird (Archilochus colubris). Allen's Hummingbird: Selasphorus sasin - Photos plus facts about this bird's migration status, range, and identifying characteristics. Includes a range map. Broad-billed Hummingbird: Cynanthus latirostris - Photographs, identification tips, and a taxonomy chart for this species. Ontario Hummingbird Project - The objective of this project is to learn about the life cycle of Ontario's hummingbirds especially the ruby-throated hummingbird. Ruby-throated Hummingbird: Archilochus colubris - Photograph, range maps, physical traits, habitat, and diet of this species. Rufous Hummingbird: Selasphorus rufus - Photographs, identification tips, range maps, and taxonomy chart. Hummingbird Identification - Detailed photographs and notes on most U.S. and Canadian species. Ruby-Throated Hummingbird: Archilochus colubris - Research project by Kelsey Esser on this species, including its classification, habitat, reproduction, adaptations, nutrition, interactions with other species and aerodynamics. Buff-bellied Hummingbird: Amazilia yucatanensis - Description of this species, photographs of male and female, range map, sound file and status. Blue-throated Hummingbird: Lampornis clemenciae - Photographs of male and female, sound file, and description of this bird's territorial behavior. Lucifer Hummingbird: Calothorax lucifer - Photograph of adult male, sound file, description, range and status. Costa's Hummingbird: Calypte costae - Description of this desert species, photographs of male and female, range map, sound file and status. Calliope Hummingbird: Stellula calliope - Description of this species, the smallest bird in North America, photographs of male and female, range map, sound file and status. Allen's Hummingbird: Selasphorus sasin - Photographs of male and female, sound file, and description of this bird's territorial behavior and migration. Anna's Hummingbird: Calypte anna - Photographs of male and female, sound file, and description of this bird's seasonal movements and nesting. Black-chinned Hummingbird: Archilochus alexandri - Photographs of male and female, sound file, description, range and status. Broad-tailed Hummingbird: Selasphorus platycercus - Photograph of adult male, sound file, description, range and status. Greg Lasley's Hummingbirds - Photographs and notes of 14 hummingbird species from throughout the Americas. Magnificent Hummingbird: Eugenes fulgens - Photographs of male and female, sound file, description, range and status.