The greater horseshoe bat is among Britain's most endangered mammals, requiring extensive undisturbed roost sites and insect-rich pastoral landscapes that have declined dramatically with agricultural change.
Greater horseshoe bat welfare is critically dependent on two interconnected factors: undisturbed roost sites and intact pastoral insect communities. Building renovation that disturbs maternity roosts during the summer breeding season causes pup abandonment and maternal stress. Loss of traditional mixed farming with cattle and horses reduces dung beetle and cockchafer populations - the primary prey. Road casualties during low foraging flights cause deaths. The small population size means each individual matters enormously to the species' survival. Legal roost protection is strong, but enforcement requires awareness among landowners and developers.