
Order Anseriformes, Family Anatidae
Mallard
Anas platyrhynchos
A large, familiar dabbling duck with a robust body, rounded head, and a wide, flat bill. Known for tipping up to feed in shallow water rather than diving.
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Plumage & appearance
Adult males (drakes) have a distinct glossy bottle-green head, a white collar, chestnut-brown chest, grey flanks, and a black rear with curled tail feathers. Females (hens) are mottled brown with a buff-colored head and neck. Both sexes feature a striking violet-blue speculum wing patch bordered with white.
Key field marks
Green head (male), mottled brown body (female), and the vibrant violet-blue wing speculum bordered by white bars visible on both sexes.
Size & weight
Length: 50-65 cm (20-26 in), Wingspan: 81-98 cm (32-39 in), Weight: 720-1,580 g (1.6-3.5 lb)
Voice — call & song
The female produces the classic loud, descending quack, while the male makes a quieter, lower-pitched muffled, reedy rasp or whistle.
Diet & foraging
Omnivorous; feeds on plant matter, seeds, roots, insects, small fish, and amphibians. Forages by dabbling at the water surface or grazing on land.
Habitat
Wetlands, marshes, lakes, rivers, ponds, estuaries, and urban parks with access to water and grassy areas.
Migration & movement
Partial migrant. Northern populations migrate south for winter, while temperate and urban populations are largely resident year-round.
Nesting & breeding
Nests on the ground in dense vegetation near water, well-hidden under shrubs or logs. Clutch size is typically 8-13 pale greenish-buff eggs, incubated solely by the female for about 27-28 days.
Similar species
American Black Duck and mottled ducks, which are darker and lack the prominent white borders on the female Mallard's wing speculum.
Ecological significance
Acts as an important seed disperser for aquatic plants and helps control invertebrate and mosquito populations. Serves as a key prey species for many medium-to-large predators.
Conservation status
Least Concern, with a stable and very large global population.
Observation tips
Easily observed in almost any urban or rural body of water, including city parks, ponds, lakes, and slow-moving rivers. They are generally quite habituated to humans.
Interesting facts
The Mallard is the ancestor of nearly all domestic duck breeds (except the Muscovy duck) and frequently hybridizes with other duck species in the wild.
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