Neotropical Ornithological Society was created in 1987.
Cooper Ornithological Society was created in 1893.
Norwegian Ornithological Society was created in 1957.
Florida Ornithological Society was created in 1972.
Sussex Ornithological Society was created in 1962.
Wilson Ornithological Society was created in 1888.
Spanish Ornithological Society was created in 1954.
Ornithological Society of Polynesia was created in 1990.
Georgia Ornithological Society was created in 1936.
Swedish Ornithological Society was created in 1945.
Ornithological Society of New Zealand was created in 1940.
Queensland Ornithological Society Inc was created in 1969.
Ornithological Society of the Middle East was created in 1978.