A day in the life of a small bison herd

The bison getting up after a night on the high pasture.
Our ranch can roughly be divided into a lower-elevation pasture and a higher elevation pasture or, as I like to call them: the "high pasture" and the "lower pasture." From a bison's perspective, both have advantages and disadvantages. The higher pasture gives one a good view of the surrounding area, but, unless it's been raining heavily, there no water.  The lower pasture doesn't allow you to see danger coming from as great a distance, but there is always water down there and the grass grows a little faster.  

The bison grazing on the lower pasture.
Some days the bison will spend most of their time in one or the other pasture, but I've always seen them spend the nights in the higher pasture.

Not sure what this is about, but sometimes they like to chase each other.
More running.
Now it's time for some water. The fence runs over the edge of the pond.
A closer picture than I've been able to get.

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