Bernard Castelein / Andean Goose(Chloephaga melanoptera) calling, Quetena, Altiplano, Bolivia

Bernard Castelein / Andean goose (Chloephaga melanoptera) flying across lagoon, Salar de Uyuni, altiplano September

Bernard Castelein / Andean goose (Chloephaga melanoptera) and Puna ibis (Plegadis ridgwayi) standing in lagoon, Salar de Uyuni, altiplano, Bolivia, September

Murray Cooper / Andean Goose (Chloephaga melanoptera) trio in territorial fight, Argentina

Cyril Ruoso / Andean goose (Chloephaga melanoptera) Cordillera Blanca Massif, Andes, Peru, November.

Glenn Bartley / Andean Goose (Chloephaga melanoptera), Peru

Glenn Bartley / Andean Goose (Chloephaga melanoptera) flying, Peru

Daniel Heuclin / Andean goose (Chloephaga melanoptera) landing on water, near El Paso Las Viscachas, 4450 m. Bolivian Altiplano.

Daniel Heuclin / Andean goose (Chloephaga melanoptera) two standing with mountains in background, near El Paso Las Viscachas, 4450 m. Bolivian Altiplano.

Daniel Heuclin / Andean goose (Chloephaga melanoptera) wading in shallow water, feeding, near El Paso Las Viscachas, 4450 m. Bolivian Altiplano.

Hanne & Jens Eriksen / Andean goose {Chloephaga melanoptera} male displaying at lake side with adult goose in background, Chile, November

Pete Oxford / Andean Goose (Chloephaga melanoptera) portrait, Slimbridge Wildfowl and Wetlands Trust, England