The African goose (Anser anser domesticus) most likely originated in China, despite the name, and may be related to the wild swan goose like its close cousin the Chinese goose. The two can be distinguished by the African's larger dewlap and different knob shape. The African goose is heavier than the Chinese, and is more docile. It has existed as a distinct breed since at least the middle of the nineteenth century. It appears in three colour varieties: Brown, Buff and White. Browns have black bills and knobs, and plumage with irregular shades, from a very light to dark brown. Whites have all-white plumage and orange bills and knobs.