Tree covered with hoarfrost.

© David Welling

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American buffalo (bison) in tall grass autumn pasture.

© Dennis Cox / WorldViews

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Bull elk during autumn rutting season.

© Dennis Cox / WorldViews

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Bobcat portrait.

© David Welling

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Swainson's Hawk, Buteo swainsoni, adult on fence post after rainstorm.

© Rolf Nussbaumer

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