Comb duck

Comb duck
male
female
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Anseriformes
Family: Anatidae
Genus: Sarkidiornis
Species:
S. sylvicola
Binomial name
Sarkidiornis sylvicola
Synonyms

Sarkidiornis melanotos 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, southeastern Brazil and extreme northeastern Argentina,[2] 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).

Dickcissel male perched on a metal pole singing, with neck stretched and beak open.

Songs and calls
Listen to Comb Duck on xeno-canto
  1. ^ BirdLife International (2016). "Sarkidiornis sylvicola". IUCN Red List of Threatened Species. 2016: e.T22724744A94877265. doi:10.2305/IUCN.UK.2016-3.RLTS.T22724744A94877265.en. Retrieved 19 November 2021.
  2. ^ Cite error: The named reference Bencke was invoked but never defined (see the help page).