The wood duck or Carolina duck (''Aix sponsa'') is a species of

perching duck The term perching ducks is used colloquially to mean any species of ducks distinguished by their readiness to perch high in trees Until the late 20th century, perching ducks meant ''Cairinini'', a tribe of ducks in the duck, goose and swan family ...

found in

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

. The drake wood duck is one of the most colorful North American

waterfowl Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which in ...

Description

The wood duck is a medium-sized

. A typical adult is from ( or 1.5 feet max.) In length with a wingspan of between . The wood duck's weight ranges from 454-862 g (16.0-30.4 oz). This is about three-quarters of the length of an adult mallard. It shares its genus with the Asian

Mandarin duck The mandarin duck (''Aix galericulata'') is a perching duck species native to the East Palearctic. It is medium-sized, at long with a wingspan. It is closely related to the North American wood duck, the only other member of the genus ''Aix'' ...

(''Aix galericulata''). The adult male has stunning multicolored iridescent plumage and red eyes, with a distinctive white flare down the neck. The female, less colorful, has a white eye-ring and a whitish throat. Both adults have crested heads. The male's call is a rising whistle, ''jeeeeee''; the females utter a drawn-out, rising squeal, ''do weep do weep'', when flushed, and a sharp ''cr-r-ek, cr-e-ek'' for an alarm call.

Behavior

Their breeding habitat is wooded

swamp A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in ...

s, shallow lakes,

marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found at ...

es, ponds and creeks in the eastern

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

, the west coast of the United States, some adjacent parts of southern

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

, and the west coast of

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

. They usually nest in cavities in trees close to water, although they will take advantage of nesting boxes in wetland locations. Other species may compete with them for nesting cavities, such as

birds of prey Birds of prey or predatory birds, also known as raptors, are hypercarnivorous bird species that actively hunt and feed on other vertebrates (mainly mammals, reptiles and other smaller birds). In addition to speed and strength, these predat ...

, as well as mammals such as grey squirrels, and these animals may also occupy nest boxes meant for wood ducks. Wood ducks may end up nesting up to a mile away from their water source as a result. Females line their nests with feathers and other soft materials, and the elevation provides some protection from predators. Unlike most other ducks, the wood duck has sharp claws for perching in trees and can, in southern regions, produce two broods in a single season—the only North American duck that can do so. Females typically lay between 7 and 15 white-tan eggs that incubate for an average of 30 days. However, if nesting boxes are placed too close together, females may lay eggs in the nests of their neighbours, which may lead to nests which may contain as many as 30 eggs and unsuccessful incubation, a behaviour known as "nest dumping". After hatching, the

precocial In biology, altricial species are those in which the young are underdeveloped at the time of birth, but with the aid of their parents mature after birth. Precocial species are those in which the young are relatively mature and mobile from the mome ...

ducklings climb to the opening of the nest cavity, jump down from the nest tree and make their way to water. The mother calls them to her, but does not help them in any way. They prefer nesting over water so the young have a soft landing, but will nest up to away from the shoreline. The day after they hatch, the young climb to the nest entrance and jump to the ground. The ducklings can swim and find their own food by this time. Wood ducks feed by dabbling (feeding from the surface rather than diving underwater) or grazing on land. They mainly eat berries, acorns, and seeds, but also insects, making them

omnivore An omnivore () is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and animal matter, omnivores digest carbohydrates, protein, fat, and fiber, and metabolize the nutr ...

Distribution

The birds are year-round residents in parts of its southern range, but the northern populations migrate south for the winter. They overwinter in the southern United States near the Atlantic Coast. 75% of the wood ducks in the

Pacific Flyway The Pacific Flyway is a major north-south flyway for migratory birds in the Americas, extending from Alaska to Patagonia. Every year, migratory birds travel some or all of this distance both in spring and in fall, following food sources, heading ...

are non-migratory. Due to their attractive plumage, they are also popular in waterfowl collections and as such are frequently recorded in

Great Britain Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is ...

as escapees—populations have become temporarily established in

Surrey Surrey () is a ceremonial and non-metropolitan county in South East England, bordering Greater London to the south west. Surrey has a large rural area, and several significant urban areas which form part of the Greater London Built-up Area. ...

in the past, but are not considered to be self-sustaining in the fashion of the closely related

mandarin duck The mandarin duck (''Aix galericulata'') is a perching duck species native to the East Palearctic. It is medium-sized, at long with a wingspan. It is closely related to the North American wood duck, the only other member of the genus ''Aix'' ...

. Along with the mandarin duck, the wood duck is considered an invasive species in England and Wales, and it is illegal to release them into the wild. Given its native distribution, the species is also a potential natural vagrant to Western Europe and there have been records in areas such as

Cornwall Cornwall (; kw, Kernow ) is a historic county and ceremonial county in South West England. It is recognised as one of the Celtic nations, and is the homeland of the Cornish people. Cornwall is bordered to the north and west by the Atlantic ...

Scotland Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the ...

and the

Isles of Scilly The Isles of Scilly (; kw, Syllan, ', or ) is an archipelago off the southwestern tip of Cornwall, England. One of the islands, St Agnes, is the most southerly point in Britain, being over further south than the most southerly point of the ...

, which some observers consider may relate to wild birds; however, given the wood duck's popularity in captivity, it would be extremely difficult to prove their provenance. There is a small feral population in

Dublin Dublin (; , or ) is the capital and largest city of Republic of Ireland, Ireland. On a bay at the mouth of the River Liffey, it is in the Provinces of Ireland, province of Leinster, bordered on the south by the Dublin Mountains, a part of th ...

Conservation

The population of the wood duck was in serious decline in the late 19th century as a result of severe

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

and market hunting both for meat and plumage for the ladies' hat market in Europe. By the beginning of the 20th century, wood ducks had virtually disappeared from much of their former range. In response to the Migratory Bird Treaty established in 1916 and enactment of the U.S. Migratory Bird Treaty Act of 1918, wood duck populations began to recover slowly. By ending unregulated hunting and taking measures to protect remaining habitat, wood duck populations began to rebound in the 1920s. The development of the artificial nesting box in the 1930s gave an additional boost to wood duck production. More information on the efficacy of nest boxes can be found in the Conservation Evidence webpage. Wood duck boxes have been found to be less effective than natural, hollow, dead trees but remain overall beneficial for the population. Landowners as well as park and refuge managers can encourage wood ducks by building wood duck nest boxes near lakes, ponds, and streams.

Fulda Fulda () (historically in English called Fuld) is a town in Hesse, Germany; it is located on the river Fulda and is the administrative seat of the Fulda district (''Kreis''). In 1990, the town hosted the 30th Hessentag state festival. History ...

, Minnesota has adopted the wood duck as an unofficial mascot, and a large number of nest boxes can be found in the area. Expanding

North American beaver The North American beaver (''Castor canadensis'') is one of two extant beaver species, along with the Eurasian beaver (''Castor fiber''). It is native to North America and introduced in South America ( Patagonia) and Europe (primarily Finland ...

populations throughout the wood duck's range have also helped the population rebound as beavers create an ideal forested wetland habitat for wood ducks. The population of the wood duck has increased a great deal in the last several years. The increase has been due to the work of many people constructing wood duck boxes and conserving vital habitat for the wood ducks to breed. During the open waterfowl season, U.S. hunters have only been allowed to take two wood ducks per day in the

Atlantic The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe an ...

and

Mississippi Flyway The Mississippi Flyway is a bird migration route that generally follows the Mississippi, Missouri, and Lower Ohio Rivers in the United States across the western Great Lakes to the Mackenzie River and Hudson Bay in Canada. The main endpoints of ...

s. However, for the 2008–2009 season, the limit was raised to three. The wood duck limit remains at two in the

Central Flyway The Central Flyway is a bird migration route that generally follows the Great Plains in the United States and Canada. The main endpoints of the flyway include the Canadian Prairies and the region surrounding the Gulf of Mexico; the migration ...

and at seven in the

. It is the second most commonly hunted duck in North America, after the mallard.

In popular culture

In 2013, the

Royal Canadian Mint }) is the mint of Canada and a Crown corporation, operating under the ''Royal Canadian Mint Act''. The shares of the Mint are held in trust for the Crown in right of Canada. The Mint produces all of Canada's circulation coins, and manufacture ...

created two coins to commemorate the wood duck. The two coins are each part of a three coin set to help promote

Ducks Unlimited Ducks Unlimited (DU) is an American nonprofit organization 501(c) dedicated to the conservation of wetlands and associated upland habitats for waterfowl, other wildlife, and people. It has had a membership of around 700,000 since January 2013. ...

Canada as well as celebrate its 75th anniversary. It is featured in James Thurber's short story "The Wood Duck".

Gallery

File:Aix sponsa chick.jpg, Duckling File:Brautentenpaar 2008-03-21 072.jpg, A breeding pair File:Male Aix sponsa portrait.jpg, Close up of the drake's head File:Wood Duck.JPG, Drake in profile File:Wood duck eclipse.jpg, Male in

eclipse plumage Plumage ( "feather") is a layer of feathers that covers a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies and may vary with age classes. Within species, ...

File:Woodduckfemale.jpg, A female at Yellow Lake in Washington state File:Petrus-bester-6311.jpg, alt=female wood duck swimming, A female swimming File:Wood duck lift off.jpg, Lifting off from the water surface File:WoodDuckicetakeoffDec08.jpg, Taking off from ice File:Wood duck in approach.jpg, Male in flight profile File:Walking wood duck.jpg, A male bird walking File:Wood Duck, Central Park.jpg, Male grooming himself

References

External links

Wood Duck Society
* * * {{Taxonbar, from=Q322159

wood duck The wood duck or Carolina duck (''Aix sponsa'') is a species of perching duck found in North America. The drake wood duck is one of the most colorful North American waterfowl. Description The wood duck is a medium-sized perching duck. A ty ...

Birds of North America Birds of Cuba Birds of the Caribbean

Extant Pleistocene first appearances