Single-breeding versus colonial breeding in the Caspian Tern Hydroprogne caspia, the Common Tern Sterna hirundo and the Arctic Tern Sterna paradisaea
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Bergman, G. (1980). Single-breeding versus colonial breeding in the Caspian Tern Hydroprogne caspia, the Common Tern Sterna hirundo and the Arctic Tern Sterna paradisaea. Ornis Fennica, 57(4), 141–152. Hämtad från https://ornisfennica.journal.fi/article/view/133049