Muscovy Duck

About

The Muscovy Duck (Cairina moschata) is a large duck native to Mexico, Central, and South America. It is characterized by its distinctive caruncles (fleshy growths) around the face, especially prominent in males. Wild populations are typically dark with white wing patches, while domesticated forms exhibit a wide range of plumages. It is a perching duck, often found in wooded wetlands.

Size & lifespan

Length

66-84 cm (26-33 in)

Wingspan

102-152 cm (40-60 in)

Weight

Males: 2.7-6.8 kg (6-15 lbs); Females: 1.4-3.6 kg (3-8 lbs)

Lifespan

8-12 years in the wild, up to 20 years in captivity

Diet

Omnivore

Physical characteristics

Plumage

Wild Muscovy Ducks are predominantly glossy black with iridescent green and purple sheens, especially on the back and wings. They have large white patches on the wings, visible in flight and often when at rest. Domesticated varieties show a much wider range of colors including white, black, blue, chocolate, and pied patterns.

Beak shape

Broad, flattened bill, typically dark with pinkish or reddish areas, especially near the base. The bill is often partially obscured by caruncles in males.

Eye color

Dark brown, often surrounded by the carunculated facial skin.

Leg color

Short, stout legs and webbed feet, typically dark gray to black, sometimes with reddish tints.

Distinguishing features

The most distinctive feature is the extensive red or black carunculated (fleshy, warty) skin around the eyes and bill, particularly pronounced in adult males. They also have a crest of feathers on the nape that can be raised. The large white wing patches are a key field mark for wild birds.

Juvenile appearance

Juveniles resemble adult females but are duller in coloration, with less developed caruncles. Their plumage is typically a duller brown-black, and the white wing patches may be less distinct.

Seasonal changes

No significant seasonal plumage changes. The caruncles may become more vibrant or pronounced during the breeding season, especially in males.

Sexual dimorphism

Males (drakes) are significantly larger than females (hens), often twice the weight. Males have much more extensive and prominent caruncles on their faces, giving them a more 'warty' appearance. Females have smaller, less developed caruncles.

How to identify

1. 1

   Facial Caruncles

   Look for the distinctive red or black fleshy growths around the eyes and bill. These are much more pronounced in males.

2. 2

   Size and Shape

   Note the large, heavy-bodied duck with a long body and relatively short legs. Males are significantly larger than females.

3. 3

   Plumage (Wild Birds)

   Observe the glossy black body with iridescent sheens and the prominent white wing patches, especially visible in flight.

4. 4

   Behavior

   Watch for perching in trees, a characteristic behavior for this species. Also, note their quiet nature compared to other ducks.

5. 5

   Flight

   Identify by their strong, direct flight and the conspicuous white wing patches.

Habitat & range

Biomes

Tropical and subtropical wetlands, forests, swamps, marshes, and agricultural areas.

Geographic range

Native to Mexico, Central America, and South America, ranging from the Rio Grande Valley of Texas south to northern Argentina and Uruguay. Feral populations are established in many parts of the world, including North America (Florida, Texas), Europe, and Australia.

Elevation range

Primarily lowlands, typically below 1,000 meters (3,300 feet), but can be found at higher elevations in some parts of its range.

Preferred environments

Prefers wooded swamps, forested rivers, lakes, and ponds, especially those with overhanging trees for perching and nesting. They are often found near human settlements and agricultural lands where food is readily available.

Behavior

Activity time

Diurnal, most active during the day, especially in the morning and late afternoon.

Feeding habits

Forages by dabbling in shallow water, grazing on land, and occasionally diving. Its diet is highly varied, including aquatic plants, seeds, grains, grasses, small fish, crustaceans, insects, and small reptiles. They are opportunistic feeders.

Social behavior

Typically found in small groups or pairs, though larger aggregations can occur at favored feeding or roosting sites. Wild populations are generally wary of humans. Domesticated and feral populations can be quite tame.

Flight pattern

Strong, direct flight with relatively slow wingbeats. The large white wing patches are very conspicuous in flight. They are capable of perching in trees, a characteristic of 'perching ducks'.

Migration pattern

Generally non-migratory (resident) throughout its native range. Some local movements may occur in response to water availability or food resources.

Territoriality

Males can be highly territorial, especially during the breeding season, defending nesting sites and mates. They may engage in aggressive displays and fights with other males.

Breeding & reproduction

Breeding season

Varies geographically, often year-round in tropical regions, or coinciding with rainy seasons. In temperate regions, typically spring and summer.

Nesting habits

Nests are usually built in tree cavities, hollow logs, or dense vegetation near water. They may also use abandoned nests of other large birds. The nest is a shallow depression lined with vegetation and down feathers.

Clutch size

8-15 eggs, sometimes up to 20 in exceptional cases.

Egg description

8-15 eggs, typically creamy white to pale greenish-white, smooth, and oval-shaped. Size averages about 6.5 x 4.5 cm.

Incubation period

35-37 days, primarily by the female.

Fledging period

Ducklings are precocial and leave the nest shortly after hatching. They are capable of flight at about 70-80 days old.

Parental care

The female alone incubates the eggs and cares for the ducklings. Males do not participate in parental care after mating.

Where to find

Field tips

1. Look Up. Unlike most ducks, Muscovy Ducks frequently perch in trees, so remember to scan tree branches near water bodies.
2. Listen Carefully. They are generally quiet, but listening for their soft hisses or trills can help locate them, especially in dense cover.
3. Observe Facial Features. The caruncles are the most definitive identification feature, so focus on the head and face, particularly in adult birds.
4. Check for White Wing Patches. In wild birds, the large white wing patches are a reliable field mark, especially when the bird is in flight or stretching its wings.

Similar species

Quick facts

Native Range:

Mexico, Central, and South America

Diet:

Omnivorous (plants, seeds, insects, small vertebrates)

Vocalization:

Hisses (males), trills/chirps (females), no quacking

Nesting:

Tree cavities, hollow logs, dense vegetation

Conservation Status:

Least Concern

Fun facts

• The Muscovy Duck is one of the few domesticated duck species not derived from the Mallard (Anas platyrhynchos).
• Despite its name, the 'Muscovy' duck has no connection to Moscow or Russia. The origin of the name is debated, possibly from 'musk' due to a perceived musky odor, or from 'Muisca', an indigenous people of Colombia.
• They are excellent fliers and can cover long distances, which has contributed to the establishment of feral populations worldwide.
• Muscovy Ducks are known for their strong claws, which help them grip tree branches for perching.
• In some regions, feral Muscovy Ducks are considered an invasive species due to their aggressive nature and potential to outcompete native waterfowl.

Scientific classification

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Anseriformes

Family

Anatidae

Genus

Cairina

Species

Cairina moschata

Explore the Muscovy Duck