Which prey item heavily features in drier, inland California diets versus cooler British Columbia diets?

Answer

Kangaroo rats

The specific composition of the Western Rattlesnake’s diet exhibits significant geographic variation dictated by local ecology and resource availability. Data comparing different regions highlights these differences clearly. For example, in the drier, inland regions of California, the diet is documented to heavily feature kangaroo rats. Conversely, this specific prey item is cited much less frequently in the dietary surveys conducted in the cooler, potentially wetter habitats found in British Columbia, illustrating how localized abundance dictates the snake's meal plan.

Which prey item heavily features in drier, inland California diets versus cooler British Columbia diets?
dietreptilewesternsnakeRattlesnake