spring, between September and December. Pairs inhabit very small breeding territories, building their nests in grasses and under bushes. The female lays eight to ten white or cream-colored eggs. After a gestation period of approximately 24–25 days the ducklings are born. The father helps raise the ducklings; however, he leaves the family after the offspring molt. Captive hybrids with the Philippine Duck (Anas luzonica) have been described. References Works cited Kolbe, Hartmut; The Ducks of the World, Ulmer Verlag 1999, Woods, A, Woods, R: Atlas of Breeding Birds of the Falkland Islands, Anthony Nelson, Shorpshire 1997, External links Anas sibilatrix videos, photos & sounds on the Internet Bird Collection Sea World Chiloé wigeon Birds of Chile Chiloé Archipelago Chiloé wigeon Taxa named by Eduard Friedrich Poeppig Wigeons