Comb Duck vs Neotropical otter

Sarkidiornis sylvicola compared with Lontra longicaudis

Key Differences

• Comb Duck is Least Concern while Neotropical otter is Data Deficient.

Taxonomic Classification

Rank	Comb Duck	Neotropical otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Carnivora (Carnivorans)
Family	Anatidae	Mustelidae (Weasels & Otters)
Genus	Sarkidiornis	Lontra
Species	Sarkidiornis sylvicola	Lontra longicaudis

Evolutionary Relationship

Comb Duck and Neotropical otter share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Comb Duck

LC — Least Concern

Neotropical otter

DD — Data Deficient

Physical Characteristics

Attribute	Comb Duck	Neotropical otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Comb Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Norway, and Venezuela.

Neotropical otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Comb Duck

<em>Sarkidiornis sylvicola</em>, the South American comb duck, is a large waterfowl in the family Anatidae, assessed as Least Concern on the IUCN Red List. It inhabits tropical and subtropical wetlands, including flooded grasslands, marshes, rivers, and lakes in lowland South America, with occurrence records from Colombia, Venezuela, and associated countries. The species is recognized by the conspicuous knob or comb on the bill of adult males, a secondary sexual characteristic that distinguishes it from the closely related African comb duck (<em>Sarkidiornis melanotos</em>). <em>S. sylvicola</em> is a strong flier that undertakes local seasonal movements in response to water availability and flooding patterns. It nests in tree cavities and forages on aquatic vegetation, seeds, and invertebrates in shallow water and flooded fields. The species maintains a stable population and is not considered threatened.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela