Neoxolmis rufiventris
Silhouette: Emily Willoughby · PhyloPic
In 3 days <5%
The chocolate-vented tyrant (Neoxolmis rufiventris) 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 has a complicated taxonomic history. It was formally described in 1823 as "Tyrannus Rufiventris". Later in the nineteenth century and into the twentieth other authors placed it variously in genera Myiotheretes, Taenioptera, and Xolmis. In 1927 it was moved to newly erected genus Neoxolmis. Studies published in 2020 placed it in genus Nengetus. The South American Classification Committee of the American Ornithological Society (SACC) retained it Neoxolmis. The IOC and the Clements taxonomy soon agreed with that assignment. However, as of December 2024 BirdLife International's Handbook of the Birds of the World retained the species in Xolmis.
The chocolate-vented tyrant is monotypic. The chocolate-vented tyrant is 20 to 23 cm (7.9 to 9.1 in) long and weighs about 77 g (2.7 oz). The sexes have the same plumage. Adults have a mostly ashy gray face with blackish in front of the eye and on the ear... Wikipedia →
Call1:12
Chile · 2012
© Andrew Spencer · XC115764 · CC BY-NC-SA 3.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Torres del Paine National Park | 🇨🇱 Chile |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Chocolate-vented Tyrant sighting in Torres del Paine National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 101st most-seen of the 106 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Chocolate-vented Tyrant in Torres del Paine National Park on a given day, so our monthly data shows no clear season.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Chocolate-vented Tyrant sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Torres del Paine National Park, in our data
Torres del Paine National Park is the only park on Wallace's Line with enough records to rate Chocolate-vented Tyrant sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Tyrannidae
The closest relatives of the Chocolate-vented Tyrant that you can see in Torres del Paine National Park (family Tyrannidae, Tyrant Flycatchers) are Austral Negrito (about 50%), White-crested Elaenia (about 50%) and Fire-eyed Diucon (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chocolate-vented Tyrant is recorded against all the birds logged in Torres del Paine National Park (12 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
