Quick Answer
Cottontails have specific burrowing patterns, typically digging complex networks of tunnels and dens with multiple entrances and exits. These burrows often have a main tunnel leading to a nesting chamber and a secondary tunnel for escape routes.
Burrow Characteristics
Cottontails dig burrows that can range from 2 to 5 feet in depth, with tunnel diameters of 4-8 inches. The main tunnel usually slopes downward at an angle of 30-40 degrees, providing a stable entrance and exit point. Nesting chambers are typically 12-18 inches in diameter and lined with leaves, grasses, and other vegetation for insulation.
Burrow Layout and Structure
A typical cottontail burrow consists of a main tunnel, a nesting chamber, and one or more escape tunnels. The main tunnel often branches off into smaller tunnels, providing access to the nesting chamber and escape routes. Burrow entrances are usually located near vegetation or other hiding spots, providing cover from predators. Cottontails also often reuse and modify existing burrows, especially during the breeding season.
Burrow Maintenance and Use
Cottontails spend a significant amount of time maintaining and expanding their burrows. They use their powerful hind legs to dig and excavate soil, often creating complex networks of tunnels and dens. Female cottontails typically use a single burrow for multiple litters, while males may use a different burrow or share the female’s burrow. Cottontails also use their burrows as shelter during extreme weather conditions and as a refuge from predators.
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