NATURAL HISTORY · CATALOGUE RECORD
Chubut Steamer Duck
Tachyeres leucocephalus Humphrey & Thompson, 1981
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
The Chubut steamer duck or white-headed flightless steamer duck (Tachyeres leucocephalus) is a flightless duck endemic to Argentina.
It is the most recently recognized species of steamer duck, being described only in 1981. This is because it is only found along a rather small and sparsely populated stretch of coast around the Golfo San Jorge in southern Chubut and northern Santa Cruz Provinces, and because steamer ducks in general look fairly similar in plumage.
Wikipedia contributors, Chubut steamer duck; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T08:17:18.908659+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Tachyeres leucocephalus Humphrey & Thompson, 1981
- Name authority
- Humphrey & Thompson, 1981
- Common name
- Chubut Steamer Duck
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Aves
- Order
- Anseriformes
- Family
- Anatidae
- Genus
- Tachyeres
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classAves
- orderAnseriformes
- familyAnatidae Leach, 1820
- genusTachyeres Owen, 1875
- speciesTachyeres leucocephalus Humphrey & Thompson, 1981
Close classified relatives
These entries share the source’s genus, Tachyeres. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Falkland Steamer DuckTachyeres brachypterus (Latham, 1790) | AnatidaeChordata | Accepted speciesRecorded extant |
| Flightless Steamer-DuckTachyeres pteneres (J. R. Forster, 1844) | AnatidaeChordata | Accepted speciesRecorded extant |
| Flying Steamer DuckTachyeres patachonicus (P. P. King, 1831) | AnatidaeChordata | Accepted speciesRecorded extant |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=553910 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:54CLN. Classification follows source parent identifiers. English common names may vary by region.