The species of ducks in the lagoons there where we hunt are , Whistling-Ducks , White-faced Whistling-Duck , Silver Teal , Yellow-billed Teal , Yellow-billed Pintail , Chiloe (Southern) Wigeon , Brazilian Teal , Ringed Teal , Red Shoveler , Cinnamon Teal , White-cheeked Pintail and Black-headed Duck ,