Do mule deer change their feeding patterns with the seasons?

Seasonal Feeding Patterns

Mule deer adjust their feeding habits to maximize nutrient intake and minimize energy expenditure. In the spring, they focus on high-protein foods like buds, leaves, and twigs. This typically occurs from late March to early May, when grasses and other vegetation are still in their early stages of growth. During this time, mule deer often congregate in areas with an abundance of oak, willow, and cottonwood trees.

Summer Feeding Patterns

By mid-summer, mule deer shift their focus to more abundant food sources like grasses, forbs, and shrubs. This usually occurs when the first cuttings of grasses are available, typically around mid-July. Mule deer will often spend up to 12 hours a day grazing in areas with high-quality forage, such as meadows and valleys. It’s not uncommon for mule deer to travel long distances in search of these areas, often traveling up to 10 miles in a single day.

Winter Feeding Patterns

As the winter months approach, mule deer begin to rely on cached food sources, such as stored fat reserves and cached plant material. This typically occurs from late October to early February, when snow cover is at its peak. During this time, mule deer will often focus on lower-sugar foods like twigs, bark, and other woody plant material. This helps them conserve energy and survive the harsh winter conditions.