Structure and fluctuation of the breeding bird fauna of a north Finnish peatland area
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Väisänen, R. A., & Järvinen, O. (1977). Structure and fluctuation of the breeding bird fauna of a north Finnish peatland area. Ornis Fennica, 54(4), 143–153. Hämtad från https://ornisfennica.journal.fi/article/view/132950