Only two species of grey goose breed in Iceland, the greylag goose (anser anser) ~20,000 pairs and the pink-footed goose (anser brachyrhynchus) ~25,000 pairs, although the white-fronted goose is often seen in spring and autumn on its migration to Greenland. The greylag goose has a broad orange bill, the pink-footed goose a black and pink bill and the whited-fronted goose a white patch on its forehead. None of the black geese nest regularly in Iceland, but barnacle, brent and canada geese can be seen on their migration to their breeding grounds in Greenland and beyond. The snow goose is a rare visitor.
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