Norwegian Ornithological Society (1920–1935)
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The Norwegian Ornithological Society of 1920 (Norwegian: Norsk ornithologisk forening av 1920) was a Norwegian society for the promotion of ornithological studies.
The Norwegian Ornithological Society of 1920 (Norwegian: Norsk ornithologisk forening av 1920) was a Norwegian society for the promotion of ornithological studies.