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204by Piersma, Theunis, Tulp, Ingrid, Verkuil, Yvonne, Wiersma, Popko, Gudmundsson, Gudmundur A., Lindstrom, AkeGet access
Published in Ornis Scandinavica (1991)
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205by Chapdelaine, Gilles, Brousseau, Pierre, Anderson, Reynald, Marsan, RobertGet access
Published in Colonial Waterbirds (1985)
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208by Gustafson, Torsten, Lindkvist, Birgit, Gotborn, Lars, Gyllin, RogerGet access
Published in Ornis Scandinavica (1977)
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211by Ely, Craig R., Dau, Christian P., Babcock, Christopher A.Get access
Published in Northwestern Naturalist (1994)
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217by Fay, Francis H., Burns, John J., Kibal'chich, Arkadii A., Hills, SusanGet access
Published in Northwestern Naturalist (1991)
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