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USGS · 1008141

Migration behavior of tundra swans from the Yukon-Kuskokwim Delta, Alaska

Craig R. Ely·David C. Douglas·A. C. Fowler·Colleen A. Babcock·D.V. Derksen·John Y. Takekawa
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Craig R. Ely, David C. Douglas, A. C. Fowler, Colleen A. Babcock, D.V. Derksen, John Y. Takekawa. 1997. Migration behavior of tundra swans from the Yukon-Kuskokwim Delta, Alaska. https://pubs.usgs.gov/publication/1008141

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