In late summer and fall, voles store seeds, tubers, bulbs, and rhizomes. They eat bark at times, especially in fall and winter, and will eat crops, especially when vole populations are high. Occasional food items include snails, insects, and animal remains. General Biology and Behavior Voles are active day and night year round. They do not hibernate.
Voles construct an extensive system of underground tunnels with numerous burrow entrances.
A single burrow system may contain several adults and young. Voles may breed throughout the year, but the most common time is spring and summer. The gestation period is about 21 days, the young are weaned within 21 days, and the females mature in 35-40 days. Lifespans are short, probably ranging from 2-16 months. Many voles are excellent swimmers.