A Canada goose is a grayish-brown wild goose that comes from North America.
Canada goose in British English
noun
a large common greyish-brown North American goose, Branta canadensis, with a black neck and head and a white throat patch
Canada goose in American English
the largest wild goose (Branta canadensis) of Canada and the U.S.: it is brownish-gray, with black head and neck and a white patch oneach side of the face