PILCHER, R E M; BEER, J V; COOK, W A. Ten years of intensive late-winter surveys for waterfowl corpses on the north-west shore of the Wash, England. Wildfowl, [S. l.], p. 149–154, 1974. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/155895. Acesso em: 18 dec. 2025.