MITCHELL, Carl D; SHEA, Ruth; LOCKMAN, Dave C; BALCOMB, Janissa R. Demographic analyses of a Trumpteter Swan Cygnus cygnus buccinator population in Western USA. Wildfowl, [S. l.], p. 142, 2013. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154988. Acesso em: 17 dec. 2025.