The deer mouse is nocturnal, and is most active at twilight. Winter activity takes place mainly under snow rather than on its surface, and sever cold may limit travel to the vicinity of the nest, or ...

While the deer mouse is more abundant at higher elevations, and the white-footed mouse at lower, both coexist at intermediate altitudes which offer the greatest variety of tree species. The ...

The deer mouse, believed to be the most common mammal in North America, has a very different take on family values than its evolutionary sibling, the oldfield mouse. Oldfield mice are monogamous.