Sarkidiornis sylvicola
The Comb Duck, *Sarkidiornis sylvicola*, is a large, distinctive perching duck primarily found in the Neotropics. Males are notably larger than females, measuring 63-76 cm (25-30 in) in length and weighing 1.2-2.9 kg (2.6-6.4 lbs), while females are 51-63 cm (20-25 in) and 0.6-1.0 kg (1.3-2.2 lbs). Their most striking field mark, especially in breeding males, is a prominent, fleshy, black knob or 'comb' atop the bill, which is significantly smaller or absent in females. Plumage is largely iri...
Found in tropical and subtropical freshwater wetlands, including flooded grasslands, marshes, swamps, and along slow-moving rivers, often near forested areas for perching. Primarily occurs in lowlands up to around 1,200 meters (4,000 feet) elevation.
Primarily herbivorous, feeding on seeds, aquatic plants, and grasses; also consumes some insects and small invertebrates, especially during the breeding season.
Comb Ducks are primarily diurnal, spending their days foraging in shallow waters and often roosting conspicuously in trees or on elevated perches. Foraging involves dabbling and grazing on aquatic vegetation or in short grasses near water, but they can also dive for food. Males are polygynous, ma...
The Comb Duck (*Sarkidiornis sylvicola*) is exclusively a New World species, distributed across the Neotropical realm. Its breeding range extends from southern Mexico, throughout Central America, and across much of tropical South America. Key breeding strongholds include the Amazon and Orinoco Ri...
Least Concern
- The male Comb Duck's distinctive 'comb' or 'knob' on its bill grows larger and more prominent during the breeding season, likely serving as a visual signal for courtship. - Unlike most ducks, Comb Ducks are highly arboreal, frequently perching high in trees, even on single branches, earning the...