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  3. Gadwall

One of the 3 dabbling ducks on WAnimals

Birds · Anseriformes · Anatidae

Gadwall

Mareca strepera

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

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A medium-sized duck with deliberately unobtrusive plumage, greyish brown in the male and brown in the female. The breeding male has the back, breast and flanks finely vermiculated in black, black rump and uppertail coverts, and long, pointed silver-grey tertials. The diagnostic feature in both sexes is the white speculum, very visible in flight among the black coverts.

Weight

550 g – 1 kg

Size

46 cm – 56 cm

Diet

Herbivore

Feeds mainly on plants.

Activity

Diurnal

Active mainly during the day.

Freshwater
45countries88parks42same family

Fun facts

  • GeneralAn unassuming grey duck that steals food from coots and grebes.
  • Its epithet strepera means "noisy" in Late Latin.
  • Its closest relative is the falcated duck, and both are related to the wigeons, which is why all three were separated from Anas and moved into the genus Mareca.
  • It had an island subspecies, Mareca strepera couesi, which became extinct around 1874 on Teraina atoll, in the Pacific.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (bird)
Habitat and environment
Shallow lagoons, reservoirs and saltmarsh
Gestation / incubation
About 28 days, with the female incubating alone
Litter / clutch size
8-17 ochre-yellow eggs, usually in May, in a nest dug into a hollow among thick vegetation near water and lined with dry leaves, reed and down. The chicks are fed by the female alone and fledge at around seven weeks

Sources consulted: IUCN Red List · SEO/BirdLife (ficha y III Atlas: Lorenzo 2022) · Asturnatura · Madge y Burn 1988, Wildfowl · Johnson y Sorenson 1999 · Svensson et al. 2001 · Linnaeus 1758

Where to find it

Best time: Spring, when it breeds in the wetlands of central and southern Spain

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Where to see it

Parks and dive sites where this species has been documented — showing 10 of 88.

Related species

Other species in the catalogue with the most in common with Gadwall — same habitat, park, country, tags or family.

Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family

Keep exploring

Based on what we already know about gadwall.

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See full glossary
This page in other languages: Español · Deutsch · Français · Português · Italiano

The pins mark the parks where its presence is documented.

See its range on the interactive map→
Doñana National ParkSpain
Lake DistrictUnited Kingdom
CairngormsUnited Kingdom
Snowdonia (Eryri)United Kingdom
RetezatRomania
Danube DeltaRomania
LahemaaEstonia
Hoge Kempen National ParkBelgium
Pirin National ParkBulgaria
Wadden Sea National ParkDenmark
See all 88 parks
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CountriesUnited Kingdom
ParksDoñana National ParkSpain
TagsHerbivore
Herbivore
Diurnal
Bird
Freshwater

Europe40

Asia5

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