John Gunning:
Blue-billed Duck (Oxyura australis).
John Gunning:
Blue-billed Duck (Oxyura australis).
John Gunning:
Blue-billed Duck (Oxyura australis).
John Gunning:
Blue-billed Duck (Oxyura australis).
John Gunning:
Blue-billed Duck (Oxyura australis).
John Gunning:
Blue-billed Duck (Oxyura australis).