Southern Hemisphere Ornithological Congress was created in 1996.
Pan-African Ornithological Congress was created in 1957.
Ornithological Council was created in 1992.
Australasian Ornithological Conference was created in 2001.
Wilson Ornithological Society was created in 1888.
Georgia Ornithological Society was created in 1936.
Norwegian Ornithological Society was created in 1957.
Cooper Ornithological Society was created in 1893.
Spanish Ornithological Society was created in 1954.
Ornithological Society of Polynesia was created in 1990.
Neotropical Ornithological Society was created in 1987.
Catalan Ornithological Institute was created in 1975.
Swedish Ornithological Society was created in 1945.