Canada and Cackling Goose

Canada and Cackling Goose

Mitochondrial DNA study of the Canada Goose has resulted in two matriarchal size-related species of very similar looking geese.  The Canada Goose is now the larger-bodied group which breeds in mid-range latitudes of the northern hemisphere.  The Cackling Goose is the smaller-bodied group which breeds in the tundra region.