Swan Geese, also known as Chinese Geese, are rare, migratory geese that breed in inland Mongolia, northernmost China, and southeastern Russia; and most migrate to central and eastern China for the winter.
The large Swan Geese have also been introduced to countries outside their natural range, where feral populations of escaped or released domesticated birds have established themselves.
Swan Geese are large, measuring about 81–94 cm in length. They are the longest of all Anser geese). They typically weigh between 2.8–3.5 kg - making this species the second-heaviest Anser goose, second only to the Greylag Goose. The male's wings measures between 45 - 46 cm and the female's 37.5 - 44 cm. The male's bill is about 87 - 98 mm long and the female's about 75 - 85 mm.
The domestic swan goose sometimes has a white patch behind the bill and typically has a large knob at the base of the bill, which lacks in the wild form.
These shots were taken at a lake in a local park with my Nikon Coolpix P1000.