Sclerurus scansor
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~30%
The rufous-breasted leaftosser (Sclerurus scansor) is a species of bird in the subfamily Sclerurinae, the leaftossers and miners, of the ovenbird family Furnariidae. It is found in Argentina, Brazil, and Paraguay. The rufous-breasted leaftosser's taxonomy is unsettled. BirdLife International's Handbook of the Birds of the World (HBW) treats the taxa as two separate species, the rufous-breasted leaftosser sensu stricto and the Ceara leaftosser S. cearensis. The South American Classification Committee of the American Ornithological Society also does not recognize the "Ceara leaftosser" but does not address subspecies within the rufous-breasted.
The rufous-breasted and grey-throated leaftosser (S. albigularis) are sister species. This article follows the one species, two-subspecies model. The rufous-breasted leaftosser is one of the larger members of genus Sclerurus. It is 17.5 to 20.1 cm (6.9 to 7.9 in) long and weighs 30 to 41 g (1.1 to 1.4 oz). The sexes... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 2 | Itatiaia National Park | 🇧🇷 Brazil | |
| 3 | Tijuca National Park | 🇧🇷 Brazil | |
| 4 | Iguazú National Park | 🇦🇷 Argentina | |
| 5 | Iguaçu National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rio de Janeiro | 🇧🇷 Brazil | |
| 2 | São Paulo | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Rufous-breasted Leaftosser sighting in Itatiaia National Park on a given day, based on 82 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 197th most-seen of the 352 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April, July–September and December
In those months about 10% of wildlife watchers report a Rufous-breasted Leaftosser in Itatiaia National Park on a given day, against under 5% in January–March, May–June and October–November, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Rufous-breasted Leaftosser 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 5
Of the 5 parks where we can rate Rufous-breasted Leaftosser sightings, Itatiaia National Park ranks 2nd at under 5%. The best odds are in Serra dos Órgãos National Park (Brazil, about 20%).
Same family: Furnariidae
The closest relatives of the Rufous-breasted Leaftosser that you can see in Itatiaia National Park (family Furnariidae, Ovenbirds and Woodcreepers) are Olivaceous Woodcreeper (about 50%), Pallid Spinetail (about 40%) and Rufous-capped Spinetail (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rufous-breasted Leaftosser is recorded against all the birds logged in Itatiaia National Park (82 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.
