BOYD, H; FOX, A D. Sexual activity of Pink-footed Geese Answer brachyrhynchus at a staging area in Iceland. Wildfowl, [S. l.], v. 43, p. 117–120, 1992. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/155369. Acesso em: 15 apr. 2026.