Mallard

Mallard
Temporal range:
Female (left) and male (right) in Straßlach-Dingharting, Germany

Secure  (NatureServe)[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Anseriformes
Family: Anatidae
Genus: Anas
Species:
A. platyrhynchos
Binomial name
Anas platyrhynchos
Linnaeus, 1758
Subspecies

A. p. platyrhynchos Linnaeus, 1758
A. p. domesticus Linnaeus, 1758
A. p. conboschas C. L. Brehm, 1831 (disputed)

Range of A. platyrhynchos
  Breeding
  Resident
  Passage
  Non-breeding
  Vagrant (seasonality uncertain)
  Possibly extant and introduced
  Extant and introduced (seasonality uncertain)
  Possibly extant and introduced (seasonality uncertain)
Synonyms
  • Anas boschas Linnaeus, 1758
  • Anas adunca Linnaeus, 1758

The mallard (/ˈmælɑːrd, ˈmælərd/) or wild duck (Anas platyrhynchos) is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa. It has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Argentina, Chile, Colombia, the Falkland Islands, and South Africa. This duck belongs to the subfamily Anatinae of the waterfowl family Anatidae. Males (drakes) have green heads, while the females (hens) have mainly brown-speckled plumage. Both sexes have an area of white-bordered black or iridescent purple or blue feathers called a speculum on their wings; males especially tend to have blue speculum feathers. The mallard is 50–65 cm (20–26 in) long, of which the body makes up around two-thirds the length. The wingspan is 81–98 cm (32–39 in) and the bill is 4.4 to 6.1 cm (1.7 to 2.4 in) long. It is often slightly heavier than most other dabbling ducks, weighing 0.7–1.6 kg (1.5–3.5 lb). Mallards live in wetlands, eat water plants and small animals, and are social animals preferring to congregate in groups or flocks of varying sizes.

The female lays 8 to 13 creamy white to greenish-buff spotless eggs, on alternate days. Incubation takes 27 to 28 days and fledging takes 50 to 60 days. The ducklings are precocial and fully capable of swimming as soon as they hatch.

The mallard is considered to be a species of least concern by the International Union for Conservation of Nature (IUCN). Unlike many waterfowl, mallards are considered an invasive species in some regions. It is a very adaptable species, being able to live and even thrive in urban areas which may have supported more localised, sensitive species of waterfowl before development. The non-migratory mallard interbreeds with indigenous wild ducks of closely related species through genetic pollution by producing fertile offspring. Complete hybridisation of various species of wild duck gene pools could result in the extinction of many indigenous waterfowl. This species is the main ancestor of most breeds of domestic duck, and its naturally evolved wild gene pool has been genetically polluted by the domestic and feral mallard populations.

  1. ^ BirdLife International (2019) [amended version of 2017 assessment]. "Anas platyrhynchos". IUCN Red List of Threatened Species. 2019: e.T22680186A155457360. doi:10.2305/IUCN.UK.2019-3.RLTS.T22680186A155457360.en. Retrieved 23 February 2022.
  2. ^ "Anas platyrhynchos". NatureServe Explorer. Retrieved 17 April 2024.

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