Compare the size of the Cackling Goose on the right
"Distinguishing B. h. hutchinsii from large Canada Geese is relatively easy. In general hutchinsii is much smaller with a short, stubby bill, relatively round or even square head with steep forehead (vs wedge-shaped head), and relatively short neck. They appear paler silvery gray on the upperparts and upperwing coverts in some lighting conditions, with the feathers having a more conspicuous dark subterminal bar and a broader and more conspicuous pale tip. The breast color averages slightly darker than large eastern Canadas, although many are pale-breasted, and the breast often has a golden wash. The voice is slightly higher-pitched, and the wing shape in flight is different."
