Chocolate-vented Tyrant
Neoxolmis rufiventris
The chocolate-vented tyrant is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Chile, and Uruguay, possibly in Paraguay, and as a vagrant to Brazil.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Chocolate-vented_tyrant
Taxonomy & Classification
Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Passeriformes
Family
Tyrannidae
Genus
Neoxolmis
Chocolate-vented Tyrant belongs to the family Tyrannidae, order Passeriformes, within the Aves class.
Species Profile
The chocolate-vented tyrant is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Chile, and Uruguay, possibly in Paraguay, and as a vagrant to Brazil.
The Chocolate-vented Tyrant faces significant threats from habitat loss and degradation across its range in South American grasslands and shrublands. Agricultural expansion, overgrazing by livestock, and conversion of native grasslands to cropland have reduced suitable breeding and foraging habitat. Climate change may further impact this species by altering precipitation patterns and vegetation composition in its preferred open habitats.
Key Facts
Habitat & Distribution
Open grasslands, shrublands, and steppes of southern South America, particularly favoring areas with scattered shrubs and low vegetation. The species typically inhabits Patagonian grasslands and similar open habitats at various elevations.
Threats
Agricultural expansion and conversion of grasslands
Overgrazing by livestock degrading habitat quality
Climate change affecting grassland ecosystems
Habitat fragmentation from human development
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). Chocolate-vented Tyrant (Neoxolmis rufiventris). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/chocolate-vented-tyrant