Sclerurus caudacutus
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
The black-tailed leaftosser (Sclerurus caudacutus) is a species of bird in the subfamily Sclerurinae, the leaftossers and miners, of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela.
The black-tailed leaftosser's taxonomy is unsettled. The black-tailed and scaly-throated leaftossers (S. guatemalensis) are sister species. The black-tailed leaftosser is the darkest and dullest member of genus Sclerurus. It is 16 to 18 cm (6.3 to 7.1 in) long and weighs 34 to 42 g (1.2 to 1.5 oz). The... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tambopata National Reserve | 🇵🇪 Peru | |
| 2 | Manu National Park | 🇵🇪 Peru | |
| 3 | Yasuní National Park | 🇪🇨 Ecuador |
Rare
Under 5% of wildlife watchers report a Black-tailed Leaftosser sighting in Yasuní National Park on a given day, based on 22 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 459th most-seen of the 533 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Black-tailed Leaftosser in Yasuní National Park on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Black-tailed Leaftosser sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
3rd of 3
Of the 3 parks where we can rate Black-tailed Leaftosser sightings, Yasuní National Park ranks 3rd at under 5%. The best odds are in Tambopata National Reserve (Peru, about 10%) and Manu National Park (Peru, under 5%).
GBIF citizen-science records
It is estimated from how often the Black-tailed Leaftosser is recorded against all the birds logged in Yasuní National Park (22 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.
