Ornithology
Ornithology is the branch of zoology devoted to birds, including their anatomy, behavior, ecology, classification, and evolution.
Bird: A warm-blooded vertebrate with feathers, a beak, and forelimbs modified as wings. Birds are the organisms whose bodies, lives, and relationships ornithology investigates.
Bird conservation: The protection and recovery of bird species, populations, and habitats. Population and habitat research helps identify conservation priorities.
John James Audubon: A French American naturalist and artist known for his illustrated work The Birds of America. His paintings and descriptions shaped nineteenth-century knowledge of North American birds.
Darwin's finches: A group of Galápagos songbirds whose beak diversity reflects adaptation to different diets. Their variation became a classic case for studying natural selection in birds.
Mammalogy: The branch of zoology that studies mammals. It parallels ornithology while focusing on a different vertebrate class.
Feather: A keratinous structure that forms the distinctive covering of birds and supports flight, insulation, and display. Feather structure links bird anatomy to flight, insulation, and communication.
Bird migration: The regular seasonal movement of birds between breeding and nonbreeding areas. Tracking migration reveals routes, timing, and threats across a bird’s annual cycle.
Alexander Wilson: A Scottish American poet and naturalist whose American Ornithology documented North American birds. His multi-volume work helped establish American ornithology as a field.
Great tit: A widespread Eurasian songbird often studied in ecology, behavior, and evolution. Long-term studies of this species link individual behavior to population change.
Herpetology: The branch of zoology that studies reptiles and amphibians. Its subject groups differ from birds, despite shared vertebrate research methods.