Lesser white-fronted goose

The lesser white-fronted goose (Anser erythropus) is a goose closely related to the larger greater white-fronted goose (A. albifrons). It breeds in the northernmost Palearctic, but it is a scarce breeder in Europe, with a reintroduction attempt in Fennoscandia.

The two white-fronted goose species differ little other than in size (the lesser, at 53–66 cm (21–26 in) length and with a 120–135 cm (47–53 in) wingspan, is not much bigger than a mallard (Anas platyrhynchos)), but both may be readily distinguished from the greylag goose by their bright orange legs and their mouse-coloured upper wing-coverts. The greylag goose has a flesh-coloured bill and legs and the upper wing-coverts are bluish-grey.

Both white-fronted goose species have a very conspicuous white face and broad black bars which cross the belly.

Adult lesser white-fronted geese, as well as being smaller than greater white-fronted geese, have an obvious yellow eye-ring and the white facial blaze goes up to the crown.