Badgers dig and collect bedding throughout the year, particularly in autumn and spring. Sett maintenance is usually carried out by subordinate sows and dominant boars. The chambers are frequently lined with bedding, brought in on dry nights, which consists of grass, bracken, straw, leaves and moss. Up to 30 bundles can be carried to the sett on a single night. European badgers are fastidiously clean animals which regularly clear out and discard old bedding. During the winter, they may take their bedding outside on sunny mornings and retrieve it later in the day. Spring cleaning is connected with the birth of cubs, and may occur several times during the summer to prevent parasite levels building up.
