How to Identify a Muscovy Duck (Cairina moschata)
Quick answer
Muscovy Duck, Cairina moschata: 5 field marks, size, habitat and range, and how to tell it from Domestic/feral hybrid waterfowl, quoted from Audubon, Ducks Unlimited and USFWS.
Updated 2026-09-10 · Sources: Audubon
Found one? Take a photo to identify it.
Download on the App StoreWhat are the key facts?
- Scientific name: Cairina moschata
- Group: domestic duck
- Size: About the size of a Heron; 25-34 in (64-86 cm)
- Habitat: Coasts and shorelines, freshwater wetlands, lakes, ponds, and rivers; also urban and suburban habitats as feral/domestic birds
- Range in North America: Wild Muscovy Ducks are native to the American tropics and only rarely reach southern Texas along the Rio Grande; feral/domestic populations occur locally in parks and urban waterways across the US
Field marks to check on a Muscovy Duck
- Head pattern: Male: larger and glossier than female, with a fleshy red knob/caruncle above the bill
- Body pattern: Both sexes: very large, mostly black body
- Wing patch (speculum): Both sexes: white wing patches obvious in flight, but not visible when swimming
- Size: About the size of a Heron or a Mallard/Herring Gull class bird, 25-34 in (64-86 cm)
- Range north america: Small numbers of wild birds from northeastern Mexico may appear along the Rio Grande in southern Texas; most North American Muscovies seen are domestic/feral birds
Muscovy Duck vs Domestic/feral hybrid waterfowl
True wild Muscovy Duck is a wary inhabitant of wooded tropical rivers and swamps, while nearly all Muscovies seen in North American parks and urban ponds are domestic or feral birds, often larger and more variably marked than wild birds
Where and when to look
Coasts and shorelines, freshwater wetlands, lakes, ponds, and rivers; also urban and suburban habitats as feral/domestic birds Wild Muscovy Ducks are native to the American tropics and only rarely reach southern Texas along the Rio Grande; feral/domestic populations occur locally in parks and urban waterways across the US
How to photograph it for identification
Shoot from water level if you can, with the sun behind you, so head pattern and the wing patch show their true colors. Get one frame with the bird side-on and one as it stretches or flaps, which exposes the speculum and belly. Note who it is swimming with; ducks flock by species. The app names the likely species; confirm with the marks above, and check the female separately, since females of many ducks look alike.
FAQ
What does a Muscovy Duck look like?
Male: larger and glossier than female, with a fleshy red knob/caruncle above the bill Both sexes: very large, mostly black body
How do I tell a Muscovy Duck from a Domestic/feral hybrid waterfowl?
True wild Muscovy Duck is a wary inhabitant of wooded tropical rivers and swamps, while nearly all Muscovies seen in North American parks and urban ponds are domestic or feral birds, often larger and more variably marked than wild birds
How big is a Muscovy Duck?
About the size of a Heron; 25-34 in (64-86 cm)
Where are Muscovy Ducks found?
Wild Muscovy Ducks are native to the American tropics and only rarely reach southern Texas along the Rio Grande; feral/domestic populations occur locally in parks and urban waterways across the US
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Sources
- Audubonwww.audubon.org/field-guide/bird/muscovy-duck
Compiled by the BirdLens editorial team
Every fact on this page is taken from the sources listed above; numbers and prices are copied from the source, and prices name the guide or auction and its date. Research and drafting were assisted by AI, and each claim was then checked against the cited sources. Checked 2026-09-10. We do not buy, sell or grade items; the app identifies what you photograph and points you to these references.