 The coastal dunes, marshes and valley are home to 485 different plants and a diverse range of wildlife.Seventy-five varieties of resident and migratory birds nest in and around the estuary and valley, such as the nightjar, woodlark, several types of warblers, snipe, oyster catchers (using rabbit-holes as homes) and the predatory merlin and buzzard.This area shelters mammals such as deer, wild boar, foxes, badgers, stoats, squirrels, rabbits and the occasional seal, but, in contrast to the bay of the Somme, the estuary of the Canche does not seem to possess a seal colony.