Moult and weight changes of Redpolls, Carduelis flammea, in north Norway
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Evans, P. R., Elton, R. A., & Sinclair, G. R. (1967). Moult and weight changes of Redpolls, Carduelis flammea, in north Norway. Ornis Fennica, 44(2), 33–41. Hämtad från https://ornisfennica.journal.fi/article/view/132727