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2015 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2015 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2018 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2018 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2018 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2018 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2018 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2018 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2018 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2018 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2018 California Academy of Sciences
CalPhotos
Trumpeter swans in the Madison River in Yellowstone National Park, WY in the winter. The Trumpeter Swan (Cygnus buccinator) is the heaviest bird native to North America.
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2017 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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2014 California Academy of Sciences
CalPhotos
Trumpeter swans in the Masdison River, Yellowstone National Park, WY in the winter.
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2014 California Academy of Sciences
CalPhotos
Trumpeter swans in the Masdison River, Yellowstone National Park, WY in the winter.