Data Zone
Taxonomic note
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2016 | Least Concern | |
| 2012 | Least Concern | |
| 2009 | Least Concern | |
| 2008 | Least Concern | |
| 2004 | Least Concern | |
| 2000 | Lower Risk/Least Concern | |
| 1994 | Lower Risk/Least Concern | |
| 1988 | Lower Risk/Least Concern |
| Migratory status | full migrant | Forest dependency | does not normally occur in forest |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 465,000 | medium |
| Extent of Occurrence non-breeding (km2) | 1,280,000 | medium |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | unknown | not applicable | not applicable | 0 |
| Population trend | unknown | not applicable | - | |
| Decline (3 years/1 generation past) | - | - | - | |
| Decline (5 years/1 generation past) | - | - | - | |
| Decline (10 years/1 generation past) | - | - | - | |
| Decline (10 years/3 generation future) | - | - | - | |
| Decline (10 years/3 generation past and future) | - | - | - | |
| Number of subpopulations | - | - | - | |
| Percentage in largest subpopulation | - | - | - | |
| Generation length (yrs) | 3.6 | - | - | - |
Population justification: The global population size has not been quantified, but this species is described as 'uncommon and patchily distributed' (Stotz et al. 1996).
Trend justification: It is unclear whether the population is experiencing local fluctuations or an overall decline (del Hoyo et al. 2004).
| Country/Territory | Presence | Origin | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Argentina | extant | native | yes | |||
| Brazil | extant | vagrant | yes | |||
| Chile | extant | native | yes | |||
| Paraguay | extant | vagrant | ||||
| Uruguay | extant | native | yes |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Arable Land | suitable | breeding |
| Artificial/Terrestrial | Arable Land | suitable | non-breeding |
| Artificial/Terrestrial | Pastureland | suitable | non-breeding |
| Artificial/Terrestrial | Pastureland | suitable | breeding |
| Grassland | Subtropical/Tropical Dry | major | non-breeding |
| Grassland | Temperate | major | breeding |
| Grassland | Temperate | major | non-breeding |
| Shrubland | Subtropical/Tropical Dry | suitable | non-breeding |
| Shrubland | Temperate | suitable | non-breeding |
| Shrubland | Temperate | suitable | breeding |
| Altitude | 0 - 1200 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2023) Species factsheet: Neoxolmis rufiventris. Downloaded from
http://datazone.birdlife.org/species/factsheet/chocolate-vented-tyrant-neoxolmis-rufiventris on 07/06/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 07/06/2023.
