Nest-sites of the Common Gull Larus canus in relation to ice age geology and other factors
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Haartman, L. (1980). Nest-sites of the Common Gull Larus canus in relation to ice age geology and other factors. Ornis Fennica, 57(1), 11–16. Hämtad från https://ornisfennica.journal.fi/article/view/133026