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grebberg: Grizzly bears at Hayden Valley IMG_4357
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grebberg: Lesser Scaup at Hayden Valley IMG_4363
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grebberg: American Wigeon at Hayden Valley IMG_4367
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grebberg: Bald Eagle at Hayden Valley IMG_4023
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grebberg: Immature Bald Eagle at Hayden Valley IMG_4029a
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grebberg: Immature Bald Eagle at Hayden Valley IMG_4031a
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grebberg: Bald Eagle at Hayden Valley IMG_4048
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grebberg: Bald Eagle at Hayden Valley IMG_4051
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grebberg: Sandhill Crane at Hayden Valley IMG_4032
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grebberg: Canadagoose at Hayden Valley IMG_4070
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grebberg: American Wigeon at Hayden Valley IMG_4073
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grebberg: American Wigeon at Hayden Valley IMG_4074
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grebberg: Barrow's Goldeneye at Hayden Valley IMG_4076
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grebberg: Barrow's Goldeneye at Hayden Valley IMG_4079
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grebberg: Great Blue Heron at Hayden Valley IMG_4082
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grebberg: American Wigeon and Canadagoose at Hayden Valley IMG_4409
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grebberg: American Wigeon at Hayden Valley IMG_4415
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grebberg: American White Pelican at Hayden Valley IMG_4420
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grebberg: Lesser Scaup at Hayden Valley IMG_4432
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grebberg: Cliff Swallow at Hayden Valley IMG_4436
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grebberg: Bufflehead at Hayden Valley IMG_4445
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grebberg: Lesser Scaup at Hayden Valley IMG_4664
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grebberg: Canada Goose at Hayden Valley IMG_4674
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grebberg: Savannah Sparrow at Hayden Valley IMG_5557
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grebberg: Savannah Sparrow at Hayden Valley IMG_5558
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grebberg: Rock Wren at Hayden Valley IMG_5579
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grebberg: Teal hybrid at Hayden Valley IMG_5586
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grebberg: Cinnamon Teal at Hayden Valley IMG_5587
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grebberg: Male Green-winged Teal at Hayden Valley IMG_5592
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grebberg: Green-winged Teal at Hayden Valley IMG_5597a