Snow Goose vs Greylag Goose

In short

The Snow Goose and Greylag Goose can be distinguished by their plumage and bill color. Snow Geese have a distinctive white morph and a blue morph, while Greylag Geese are uniformly gray-brown with a pinkish bill. Both species are large, but the Greylag Goose is generally bulkier.

Identification tips

1. Bill Color: Snow Goose has a pink bill with a black 'grinning patch', while Greylag Goose has a pinkish or orange bill without a patch. 2. Plumage: Look for the white or blue morph in Snow Geese; Greylag Geese are uniformly gray-brown. 3. Size and Structure: Greylag Geese are bulkier with a thicker neck. 4. Vocalization: Listen for the higher-pitched calls of Snow Geese versus the deeper honks of Greylag Geese.

Size

Both are large geese, but the Greylag Goose is typically bulkier and has a more robust build compared to the more slender Snow Goose.

Plumage

Snow Geese have two color morphs: a white morph with black wingtips and a blue morph with a white head and dark body. Greylag Geese are uniformly gray-brown with paler underparts and lack the contrasting morphs seen in Snow Geese.

Behaviour

Both species are gregarious and often seen in large flocks. Snow Geese are known for their aggressive territorial behavior during breeding, while Greylag Geese are more sedentary and less aggressive.

Habitat

Snow Geese breed in Arctic tundra and migrate to agricultural fields and wetlands in winter. Greylag Geese are more widespread in Europe and Asia, inhabiting wetlands, lakes, and rivers.

Voice

Snow Geese have a high-pitched, honking call, while Greylag Geese produce a deeper, more resonant honk.