My guess is this is a China Goose x Greylag hybrid. China Goose is a domestic
version of Anser cygnoides, the Swan Goose. This bird lacks the distinctive
knob on the culmen of A.cygnoides, but its black beak is the wrong color for
Anser anser, the Graylag. Both are closely related barnyard birds.Sent from my
Verizon, Samsung Galaxy smartphone
