Branta canadensis - Canada Goose
The Canada Goose belongs to the Branta genus of geese, which contains species
with largely black plumage, distinguishing them from the grey species of the Anser genus.
The species name, canadensis, is a New Latin word meaning "of Canada".
more infos: http://en.wikipedia.org/wiki/Canada_goose
seen at little lake in Peterborough, ON, Canada, July 30th 2007