Introduction
The Eurasian Wigeon, Mareca penelope, is a medium-sized dabbling duck in the family Anatidae. It breeds across northern Europe and northern Asia and migrates to more temperate wetlands in winter. The species is often known simply as the Wigeon in Europe and is recognised by the male’s chestnut head, creamy forehead and distinctive whistling call.
Physical Description
The Eurasian Wigeon is approximately 42–52 cm long, with a rounded head, moderately long tail and broad, pointed wings. Adults generally weigh about 500–950 g, although mass varies with sex, season and geographical population.
The breeding-plumaged male has a chestnut-brown head and neck, a creamy or buff-coloured forehead and crown, and a mostly grey body with finely marked flanks and back. A dark green speculum and large white wing patch are especially conspicuous in flight. The undertail is black.
Females are more subdued, with mottled brown or grey-brown plumage, warmer rufous tones on the flanks and a paler belly. Their short bill is bluish grey with a black tip. Juveniles and non-breeding males resemble females, although non-breeding males may retain a darker, more reddish head and a visible white wing patch. As with many ducks, the sexes are most readily separated during the breeding season.
Range and Habitat
The Eurasian Wigeon has a broad Palearctic distribution. Breeding populations occur from Iceland and northern Europe across Scandinavia and Russia to northern and eastern Asia. Satellite-tracking studies have shown that birds wintering in Japan can migrate to breeding areas in Russia through several East Asian routes.
Most populations are migratory. In winter, birds move south to western and southern Europe, North Africa, the Middle East, the Indian subcontinent and eastern and south-eastern Asia. Some individuals also occur outside the usual range as scarce migrants.
During the breeding season, the species uses freshwater lakes, small lochs, marshes, tundra pools and wet grasslands, usually with dense vegetation nearby for nesting and brood-rearing. In winter, it occupies shallow freshwater and coastal wetlands, estuaries, reservoirs, flooded grassland, saltmarshes and sheltered coastal waters. It commonly feeds on adjacent grassland as well as in the wetland itself.
Behaviour and Diet
Eurasian Wigeons are social ducks and often gather in large flocks during migration and winter. They are active by day and may feed in the water by dabbling or tipping up, but they also graze on land. In coastal areas and on wet grasslands, grazing can be an important part of their feeding behaviour.
The diet is mainly plant-based. It includes grasses, sedges, aquatic vegetation, leaves, shoots, roots and seeds, with the balance varying according to season and habitat. Small aquatic invertebrates may also be taken, particularly by females feeding during the breeding season and by growing ducklings.
Courtship begins before the breeding season, with males displaying by swimming, calling and raising the head and body. The male has a clear, high-pitched whistle, while the female commonly gives a harsher growling or grating call. The female usually places the nest in concealed vegetation close to water. A typical clutch contains about 8–9 eggs, and the female performs the incubation and leads the precocial ducklings to feeding areas after hatching.
Identification Tips
- Look for a compact, rounded-headed duck with a short, bluish-grey bill and black tip.
- In adult males, the chestnut head and creamy forehead are distinctive, especially when contrasted with the grey body.
- The large white wing patch and dark green speculum are conspicuous when the bird flies.
- Females, juveniles and non-breeding males are mainly brown, but the white wing patch and the species’ rounded shape remain useful clues.
- The Eurasian Wigeon can be confused with the American Wigeon, Mareca americana. Adult male Eurasian Wigeons have a chestnut head and creamy forehead, whereas American Wigeon males usually show a grey-green head with a broad green eye patch. Female identification can be more difficult, so the wing pattern, bill, head shape, flank colour and overall structure should be assessed together.
- The distinctive whistling call of the male can help identify birds in dense flocks or at a distance.
Conservation Status
The Eurasian Wigeon is classified as Least Concern on the global IUCN Red List assessment. This category indicates that the species is not currently considered globally threatened, but it does not mean that all populations are secure.
Important local pressures include the loss and degradation of wetlands, pollution, disturbance at breeding and wintering sites, alteration of coastal and freshwater habitats, and unsustainable hunting in some areas. Because the species migrates across national boundaries, effective conservation depends on protecting key wetlands along its flyways, maintaining suitable breeding and feeding habitat, monitoring populations and regulating harvest where necessary.
Frequently Asked Questions
Where does the Eurasian Wigeon live?
It breeds across northern Europe and northern Asia and winters in wetlands farther south, including parts of Europe, North Africa, the Middle East, South Asia and East Asia.
Is the Eurasian Wigeon migratory?
Yes. Most populations migrate seasonally between northern breeding grounds and more temperate wintering areas, although the exact route varies between populations.
What does the Eurasian Wigeon eat?
Its diet consists mainly of grasses, sedges, aquatic plants, leaves, shoots, roots and seeds. It may also take small aquatic invertebrates, especially during the breeding season.
How can a male Eurasian Wigeon be identified?
The adult male has a chestnut head, a creamy forehead and crown, a grey body, a black undertail and a large white wing patch. Its clear whistle is another useful identification feature.
Where does the Eurasian Wigeon build its nest?
The female usually nests on the ground in dense vegetation near a lake, marsh, loch or other wetland. The concealed nest is lined with down and plant material.
Is the Eurasian Wigeon endangered?
Globally, it is classified as Least Concern. Nevertheless, local populations may be affected by wetland loss, pollution, disturbance, habitat change and poorly regulated hunting.
References
- BirdLife International. n.d. “Eurasian Wigeon Mareca penelope Species Factsheet.” BirdLife DataZone. Available at: https://datazone.birdlife.org/species/factsheet/eurasian-wigeon-mareca-penelope (accessed 8 September 2026).
- Carboneras, C., D. A. Christie and G. M. Kirwan. 2020. “Eurasian Wigeon (Mareca penelope), version 1.0.” In Birds of the World, edited by J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie and E. de Juana. Cornell Lab of Ornithology, Ithaca, New York. https://doi.org/10.2173/bow.eurwig.01.
- Cornell Lab of Ornithology. n.d. “Eurasian Wigeon Identification.” All About Birds. Available at: https://www.allaboutbirds.org/guide/Eurasian_Wigeon/id (accessed 8 September 2026).
- Doko, T., W. Chen, N. Hijikata, N. Yamaguchi, E. Hiraoka, M. Fujita, K. Uchida, T. Shimada and H. Higuchi. 2019. “Migration Patterns and Characteristics of Eurasian Wigeons (Mareca penelope) Wintering in Southwestern Japan Based on Satellite Tracking.” Zoological Science 36(6): 490–503. https://doi.org/10.2108/zs180207.
- Gill, F., D. Donsker and P. Rasmussen, eds. 2026. IOC World Bird List, version 15.2. International Ornithologists’ Union. Available at: https://www.worldbirdnames.org/ (accessed 8 September 2026).
- van Toor, M. L., S. Kharitonov, S. Švažas and M. Dagys. 2021. “Migration Distance Affects How Closely Eurasian Wigeons Follow Spring Phenology During Migration.” Movement Ecology 9: 61. https://doi.org/10.1186/s40462-021-00296-0.
- British Trust for Ornithology. n.d. “Wigeon: Mareca penelope.” BirdFacts. Available at: https://www.bto.org/learn/about-birds/birdfacts/wigeon (accessed 8 September 2026).
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