Badgers are still mating in March, with plenty of interaction within and between territories. Setts typically lie on sloping ground, and suites of tunnel entrances adjacent to spoil heaps are a giveaway. To confirm that the underground home is active, explore the surrounding area by day. Look for discarded straw bedding, fresh paw prints along ‘badgerways’ that radiate outwards, or coarse hairs trapped on barbed wire. If the signs are encouraging, return shortly before dusk, choose a concealed spot downwind of the sett, and wait for Britain’s largest subterranean mammal to perform.