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1by Grønstøl, Gaute, Myking, Ole Langeland, Lislevand, Terje, Byrkjedal, IngvarGet access
Published in Ornis Norvegica (2007)
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2
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3by Byrkjedal, Ingvar, Kyllingstad, Kåre, Efteland, Svein, Grøsfjell, SteinarGet access
Published in Ornis Norvegica (2012)
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Article in Journal/Newspaper