What topographical features do bison herds frequently seek when powerful storms reduce wind chill?

Answer

Valleys, draws, or the lee side of ridges

While the bison's coat offers excellent protection against cold, minimizing exposure to the sheer force of wind and drifting snow provides an added, crucial benefit for survival and energy conservation. Herd behavior dictates seeking locations that naturally mitigate the severity of storms. Specifically, bison will orient themselves toward geographical formations that effectively break the velocity of the wind. These preferred sites commonly include lower elevations such as valleys, topographical depressions known as draws, or the leeward side (the lee side) of ridges. Furthermore, huddling as a group in these sheltered spots collectively reduces the total surface area each individual exposes to the frigid air, offering a collective thermal advantage, particularly beneficial for the young and vulnerable calves nestled safely in the center of the group.

What topographical features do bison herds frequently seek when powerful storms reduce wind chill?

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