Comb duck

Sarkidiornis sylvicola

The comb duck or American comb duck (Sarkidiornis sylvicola), is an unusual duck found in tropical wetlands in continental South America south to the Paraguay River region in eastern Paraguay, southea

Family: Anatidae Order: Anseriformes Conservation: Least Concern
Comb duck

About the Comb duck

The comb duck or American comb duck (Sarkidiornis sylvicola), is an unusual duck found in tropical wetlands in continental South America south to the Paraguay River region in eastern Paraguay, southeastern Brazil and extreme northeastern Argentina, and as a vagrant on Trinidad. Most taxonomic authorities split this species and the knob-billed duck from each other. The comb duck is generally smaller in size when compared to the knob-billed duck, and flanks are darker (black in males, medium grey in females).

Fun Facts About Comb duck

  • The comb duck or American comb duck (Sarkidiornis sylvicola), is an unusual duck found in tropical wetlands in continental South America south to the Paraguay River region in eastern Paraguay, southeastern Brazil and extreme northeastern Argentina, and as a vagrant on Trinidad.
  • The comb duck is generally smaller in size when compared to the knob-billed duck, and flanks are darker (black in males, medium grey in females).

Conservation Status

The Comb duck is classified as Least Concern on the IUCN Red List. This species is currently stable and not at significant risk of population decline.

View on IUCN Red List →

Taxonomy & Classification

OrderAnseriformes
FamilyAnatidae
GenusSarkidiornis
SpeciesSarkidiornis sylvicola

Range & Habitat

Range map of Comb duck

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Related Species

Other species in the Anatidae family: