Dysithamnus xanthopterus
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~30%
The rufous-backed antvireo (Dysithamnus xanthopterus) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is endemic to Brazil. The rufous-backed antvireo is monotypic. The rufous-backed antvireo is about 12 cm (4.7 in) long. Adult males have a gray forehead, crown, nape, and upper back; their forehead, upper sides of the face, and lores have white spots. Their rest of their upperparts, wings, and tail are rufous. The center of their throat is white. Most of their underparts are pale gray (that is almost white on the belly) and their flanks are ochraceous. Adult females have a rufous crown and the spots on their face are pale buff. Most of their underparts are also pale buff, with pale olivaceous sides and flanks.
The rufous-backed antvireo is native to the Serra do Mar coastal forests, primarily between Rio de Janeiro and Paraná states. Since 2013 there have been scattered records from further south in Santa Catarina. The species inhabits the mid-storey to the subcanopy of montane evergreen forest and mature secondary forest. In elevation it ranges between... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Itatiaia National Park | 🇧🇷 Brazil | |
| 2 | Serra dos Órgãos National Park | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Rufous-backed Antvireo sighting in Serra dos Órgãos National Park on a given day, based on 37 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 202nd most-seen of the 336 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Rufous-backed Antvireo in Serra dos Órgãos National Park on a given day, against under 5% in March, July and October–January, the lowest months. That is one of Serra dos Órgãos National Park's driest months, with about 100 mm of rain against 310 mm in November.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Rufous-backed Antvireo sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Rufous-backed Antvireo sightings, Serra dos Órgãos National Park ranks 2nd at about 10%. The best odds are in Itatiaia National Park (Brazil, about 20%).
Same genus: Dysithamnus
The closest relatives of the Rufous-backed Antvireo that you can see in Serra dos Órgãos National Park (genus Dysithamnus, Antvireos) are Plain Antvireo (about 40%) and Spot-breasted Antvireo (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rufous-backed Antvireo is recorded against all the birds logged in Serra dos Órgãos National Park (37 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.
