Mottled Duck
Anas fulvigula
The adult mottled duck is 44 to 61 cm (17–24 in) long from head to tail. It has a dark body, lighter head and neck, orange legs and dark eyes. Both sexes have a shiny green-blue speculum (wing patch), which is not bordered with white as with the mallard. Males and females are similar, but the male's bill is bright yellow, whereas the female's is deep to pale orange, occasionally lined with black splotches around the edges and near the base. The plumage is darker than in female mallards, especially at the tail, and the bill is yellower.
ID text from Wikipedia, CC BY-SA 4.0
Muscovy Duck
Cairina moschata
It is a large duck, with the males significantly larger than the females. The males are 76–84 cm (30–33 in) long and weigh up to 3–4 kg (6.6–8.8 lb); females are 71–76 cm (28–30 in) long and 1.25 kg (2.8 lb) weight, roughly half the weight of the males. The wingspan is from 137 to 152 cm (54 to 60 in). The plumage is predominantly black, with large white patches on the wing; the back and wing feathers being iridescent and glossy in males, while the females are more drab. Muscovy ducks have long claws on their feet and a wide, flat tail. On the head, the male has a short crest on the nape.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
Learn this pair in BeakBrain
Photo and call practice, free in any browser.
Play BeakBrainPhotos and recordings are credited to their authors under the licence shown. Full profiles: Mottled Duck and Muscovy Duck.