NATURAL HISTORY · CATALOGUE RECORD
Red-billed Curassow
Crax blumenbachii Spix, 1825
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 red-billed curassow or red-knobbed curassow (Crax blumenbachii) is an endangered species of cracid that is endemic to lowland Atlantic Forest in the states of Espírito Santo, Bahia and Minas Gerais in southeastern Brazil. Its population is decreasing due to hunting and deforestation, and it has possibly been extirpated from Minas Gerais. It is currently being reintroduced to Rio de Janeiro by means of individuals bred in captivity. As suggested by its common name, the male has a largely red bill, but this is lacking in the female.
Wikipedia contributors, Red-billed curassow; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T07:38:39.365095+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Crax blumenbachii Spix, 1825
- Name authority
- Spix, 1825
- Common name
- Red-billed Curassow
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Aves
- Order
- Galliformes
- Family
- Cracidae
- Genus
- Crax
- 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
- orderGalliformes
- familyCracidae
- subfamilyCracinae
- genusCrax Linnaeus, 1758
- speciesCrax blumenbachii Spix, 1825
Close classified relatives
These entries share the source’s genus, Crax. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Yellow-knobbed CurassowCrax daubentoni G. R. Gray, 1867 | CracidaeChordata | Accepted speciesRecorded extant |
| Blue-billed CurassowCrax alberti Fraser, 1852 | CracidaeChordata | Accepted speciesRecorded extant |
| Bare-faced CurassowCrax fasciolata Spix, 1825 | CracidaeChordata | 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=175759 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:6BBXC. Classification follows source parent identifiers. English common names may vary by region.