COLEMAN, A E; MINTON, C D T. Mortality of Mute Swan progeny in an area of south Staffordshire. Wildfowl, [S. l.], v. 31, p. 22–28, 1980. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154165. Acesso em: 19 apr. 2026.