Barnacle Goose
Branta leucopsis
The barnacle goose is a medium-sized goose, 55–70 cm (22–28 in) long, with a wingspan of 120–145 cm (47–57 in) and a weight of 1.21–2.23 kg (2.7–4.9 lb), with black legs and a small, stubby black bill. It has a white face and black head, neck, and upper breast. Its belly is white. The wings and its back are silver-grey with black-and-white bars that look like they are shining when the light reflects on it. During flight, a V-shaped white rump patch and the silver-grey underwing linings are visible.
ID text from Wikipedia, CC BY-SA 4.0
Cackling Goose
Branta hutchinsii
The black head and neck with white "chinstrap" distinguish this goose from all other geese except the larger Canada goose (Branta canadensis) and the similarly sized barnacle goose (B. leucopsis). There are up to five subspecies of cackling goose of varying sizes and plumage details. The female looks virtually identical but is slightly lighter and has a different voice. Some are hard to distinguish from the Canada goose, with which the cackling goose was long assumed to form one species, the cackling goose and the smaller Canada goose subspecies being called the lesser Canada goose.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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