Lesser white-fronted goose
A small, endangered goose with a distinctive yellow eye-ring.
The lesser white-fronted goose (*Anser erythropus*) is a close relative of the larger greater white-fronted goose (*A. albifrons*). Its breeding grounds lie in the far northern Palearctic, though it nests only sparingly in Europe, where a reintroduction effort is underway in Fennoscandia.
First formally described by Carl Linnaeus in 1758 as *Anas erythropus*, it now sits in the genus *Anser*, named by Mathurin Jacques Brisson in 1760. The species name combines the Latin *anser* (“goose”) with *erythropus*, from Greek roots meaning “red-footed.” No subspecies are recognized. It winters farther south in Europe and is a rare vagrant to Great Britain and India. Birds once appeared regularly at WWT Slimbridge in England, inspiring Sir Peter Scott to found The Wildfowl and Wetlands Trust, but modern sightings are much rarer due to the species’ decline. It is also common in wildfowl collections, so summer sightings or those among feral geese likely involve escapees.
At 53–66 cm long with a 120–135 cm wingspan, the lesser white-fronted goose is barely larger than a mallard. Both white-fronted species share bright orange legs and mouse-colored upper wing-coverts, unlike the greylag goose’s flesh-colored bill and legs and bluish-grey wing-coverts. They also have a conspicuous white face and broad black bars across the belly. The lesser differs from the greater by its smaller size, a yellow eye-ring, and a white facial blaze that extends to the crown.
The species is endangered, and reintroduction programs aim to bolster wild populations. It is also covered by the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA). The genetically distinct Fennoscandian population numbers at most 20 breeding pairs (60–80 individuals). These birds breed in northern Norway and overwinter in Greece, Bulgaria, and Turkey, with a key stopover at Hortobágy National Park in Hungary. Another part of this population breeds in northern Sweden, estimated at about 15 breeding pairs (40–50 individuals) in 2015. These follow a western migration route to winter in the Netherlands and Germany. As of 2015, the IUCN Red List classifies this population as Critically Endangered.
- Scientific name
- Anser erythropus
- Family
- Anatidae
- Length
- 53–66 cm
- Wingspan
- 120–135 cm
- Conservation status
- Endangered (global); Critically Endangered (Fennoscandian population)
- Distinctive features
- Yellow eye-ring, white facial blaze reaching crown, orange legs, black belly bars
Lore & Background
The lesser white-fronted goose was formally described in 1758 by Carl Linnaeus under the name Anas erythropus. Linnaeus specified the type location as northern Europe, later restricted to northern Sweden in 1913. The species is now placed in the genus Anser, introduced by Mathurin Jacques Brisson in 1760. Its specific epithet combines Latin anser (goose) and Greek-derived erythropus (red-footed). No subspecies are recognised.
Reader's Guide
The lesser white-fronted goose is significant as an endangered species with active reintroduction programs and protection under the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA). Its Fennoscandian population is genetically distinct and critically endangered, with separate breeding groups in northern Norway and northern Sweden. These birds follow different migration routes: the Norwegian group winters in Greece, Bulgaria, and Turkey, with a major stopover at Hortobágy National Park in Hungary; the Swedish group winters in the Netherlands and Germany. The species' decline on European breeding grounds has reduced its occurrence as a vagrant in Great Britain, where it once inspired Sir Peter Scott to establish The Wildfowl and Wetlands Trust. Escapes from wildfowl collections complicate identification of wild individuals.
Did You Know?
- The lesser white-fronted goose is not much bigger than a mallard (Anas platyrhynchos).
- Adult lesser white-fronted geese have an obvious yellow eye-ring and the white facial blaze goes up to the crown.
- The Fennoscandian population is estimated at 20 breeding pairs or 60–80 total individuals at most.
- The species was formally described by Carl Linnaeus in 1758 under the binomial name Anas erythropus.
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