Cackling Goose Branta hutchinsii

Cackling Goose Cackling Goose, similar size to or just a little larger than the Brent Goose which followed it everywhere
Brent Goose, Cackling Goose, two Barnacle Geese and a Lesser White-fronted Goose
Cackling Geese are like mini Canada Geese. They come from North America, breeding in Canada and Alaska and wintering further south. They are rare migrants to Western Europe. Originally thought to be species of Canada Geese, Cackling Geese were split into their own species in 2004 (US) and 2005 (GB).
Cackling Goose Cackling (above) are very similar in appearance to the larger Canada Geese.
The adult Cackling Goose is barely larger than a Mallard.