Mainland insectivore populations are generally similar to the rest of Britain. Recent steps by Scottish Natural Heritage, the Scottish Executive and the Royal Society for the Protection of Birds to remove European hedgehogs from the Outer Hebrides, where their introduction has caused declines in internationally important breeding populations of wading seabird such as dunlin, ringed plover and redshank, has caused considerable controversy, and hedgehog culls were halted in 2007. The trapped animals are now relocated to the mainland. The programme has reduced this population; only two individuals were caught in 2007.