Ross's Goose vs Greylag Goose

In short

Ross's Goose and Greylag Goose can be distinguished primarily by size and bill characteristics. Ross's Goose is smaller with a shorter, stubbier bill, while the Greylag Goose is larger with a longer, more robust bill. These differences are most apparent when the birds are seen side by side.

Identification tips

1. Size and Bill: Look for the smaller size and shorter bill of Ross's Goose compared to the larger, robust Greylag Goose. 2. Plumage: Note the white plumage of Ross's Goose versus the grayish-brown of the Greylag. 3. Habitat: Consider geographical location; Ross's Goose is more common in North America, while Greylag Goose is found in Europe and Asia. 4. Vocalization: Listen for the distinct honking of the Greylag Goose, which differs from the Ross's Goose.

Size

Ross's Goose is significantly smaller than the Greylag Goose, which is one of the largest geese.

Plumage

Ross's Goose typically has a white plumage with a small, pink bill, whereas the Greylag Goose has a grayish-brown plumage with a more orange bill. The Greylag's plumage is more variable and can include darker tones.

Behaviour

Both species are social and often found in flocks, but Ross's Goose is more likely to be seen in mixed flocks with other white geese like the Snow Goose.

Habitat

Ross's Goose is typically found in North America, particularly in open fields and wetlands during migration and winter. Greylag Goose is native to Europe and Asia, often found in wetlands, lakes, and agricultural fields.

Voice

Greylag Goose has a loud, honking call that is quite different from the higher-pitched calls of Ross's Goose.