Historically, hedgehogs have been persecuted as vermin; between 1566 and 1863, churchwardens made payments for hedgehogs killed in their parish (5). Today, a number of factors are thought to pose threats to hedgehogs, including agricultural changes such as pesticide use and the loss of hedgerows and grasslands, drowning in garden ponds, falling into cattle grids (9), road deaths, poisoning by garden chemicals, and deaths caused by mowing machines (5).
The conservation status of this species in the UK is unclear. It is thought, however, that hedgehogs are common on a national basis, although they may be in decline on a regional level, and may even be vulnerable in some areas (9). For ways to make your garden more hedgehog friendly, see the Mammal Society fact sheet (link below).