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2by Barrett, R. T., Fieler, R., Anker‐Nilssen, T., Rikardsen, F.Get access
Published in Ringing & Migration (1985)
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3by Barrett, R. T., Anker-Nilssen, T., Rikardsen, F., Valde, K., Rov, N., Vader, W.Get access
Published in Ornis Scandinavica (1987)
Article in Journal/Newspaper