A female Grey Seal (Halichoerus grypus) on the shore in winter, at Donna Nook Nature Reserve, on the North Sea coast of Lincolnshire, Great Britain.

grey seal halichoerus grypus winter nature reserve north sea shore lincolnshire great britain wildlife resting coast sandy beach marine mammal outdoor reflection population native species animal behavior natural habitat conservation aquatic life female ecosystem fauna weather environment tourism watching coastal landscape biodiversity area welfare scenery water shoreline retreat position