Ornithology (from Ancient Greek ὄρνις (órnis) 'bird' and λόγος (lógos) 'study of') is a branch of zoology dedicated to the study of birds. Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. It has also been an area with a large contribution made by amateurs in terms of time, resources, and financial support. Studies on birds have helped develop key concepts in biology including evolution, behaviour and ecology such as the definition of species, the process of speciation, instinct, learning, ecological niches, guilds, insular biogeography, phylogeography, and conservation.
While early ornithology was principally concerned with descriptions and distributions of species, ornithologists today seek answers to ve...
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AldrovandiOrnithology.jpg
Ulysse Aldrovandi's cover page of Ornithologiae
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Banding of a marbled godwit on Bowdoin NWR.
Credit: Kathy Tribby/USFWS
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Birds and Humans skeleton comparison from 1555
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Morphometric measurement of birds, length, wing, bill, tarsus, tail
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Bird eggs
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Distribution and abundance map of Canada goose Branta canadaensis between 1994-2003
Sauer, J. R., J...
Caribou from Wagon Trails.jpg
Appears to be an albino Elk, located at Wagon Trails Animal Park.
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A Californian Condor in flight, photographed in Zion National Park, Utah
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DNA molecule
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Swooping Eagle
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Emlen funnel
Facsimile Painting of Geese, Tomb of Nefermaat and Itet MET DT226227.jpg
Facsimile, Nefermaat and Itet, Meidum geese
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Marbled Godwit Limosa fedoa, prepared as a skin (shmoo), skeleton, and spread wing
Issoria lathonia.jpg
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Quinarian view of Corvidae according to Kaup
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Study skins of birds (Louisiana State University, Museum of Natural Science)
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A ruby-crowned kinglet (Regulus calendula), previously banded, caught in a mist net. Photo taken by ...
Monitoreo de Aves a Largo Plazo.jpg
The Greater Island of Chiloé is a territory located in southern Chile, characterised not only by its...
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An Experiment on a Bird in an Air Pump by Joseph Wright of Derby, 1768.jpg