A Large Bull Bison grazes in one of the few damp greener areas during the autumn season in Yellowstone National Park. A few minutes before the photo was taken, another almost as large Bull lay calmly in a dirt patch a few feet away from where this bull is grazing in the pic. This Bull came into presence with his tail lifted high and his head down and the other Bull got up and left the area immediately.
Bison once roamed the continent in great herds and their grazing helped shape the ecology of the Great Plains. Their numbers were an estimated 20-30million in the 1800’s. During the 1870’s unregulated shooting of bison reduced the population to 1,091 by 1889. Today approximately 500,000 bison live across North America. Fewer than 30,000 bison are in conservation herds, and fewer than 5,000 are free-ranging and disease free. Bison inhabit a few national parks and other small wildlife areas. Yellowstone National Pakr has the largest population of free-roaming plains bison ( about 4,000), and Wood Buffalo National Park has the largest population of free-roaming Wood Bison ( about 10,000).
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Taken on Sept 18/12 at 4:11pm in Yellowstone National Park, US.
Camera, Canon 7D
Lens, Canon EF 100-400 L IS USM lens.
Tripod, Manfrotto, including 498RC2 ballhead.
Taken at, 1/160’s at f/8.0 -1/3 ev, iso 400, 130 mm, man white bal.
No cropping, edited and sharpened in Lightroom 4.2 amount 48, radius 1.2, Detail 13, masking 89.