Ornithological Society steht für:
American Ornithological Society Cooper Ornithological Society (COS), auch the Cooper Ornithological Club Derbyshire Ornithological Society Florida Ornithological Society Georgia Ornithological Society Ornithological Society of New Zealand Ornithological Society of the Middle East Illinois Ornithological Society Ornithological Society of Japan (日本鳥学会, Nihon Chōgakkai) Hellenic Ornithological Society Hispaniolan Ornithological Society (Spanish: Sociedad Ornitológica de la Hispaniola) Norwegian Ornithological Society (Norwegian: Norsk Ornitologisk Forening, NOF) Mongolian Ornithological Society Spanish Ornithological Society Sociedad Española de Ornitología Sussex Ornithological Society Tennessee Ornithological Society Welsh Ornithological Society (Welsh: Cymdeithas Adaryddol Cymru) Wilson Ornithological Society