Sclerurus caudacutus
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~40%
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 |
With luck
About 10% of wildlife watchers report a Black-tailed Leaftosser sighting in Tambopata National Reserve on a given day, based on 217 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 213th most-seen of the 550 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
February, May–August and November
In those months about 10% of wildlife watchers report a Black-tailed Leaftosser in Tambopata National Reserve on a given day, against under 5% in March–April, September–October and December–January, the lowest months.
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.
Yes
Of the 3 parks where we can rate Black-tailed Leaftosser sightings, Tambopata National Reserve has the highest daily chance: about 10%. Next come Manu National Park (Peru, under 5%) and Yasuní National Park (Ecuador, under 5%).
Same family: Furnariidae
The closest relatives of the Black-tailed Leaftosser that you can see in Tambopata National Reserve (family Furnariidae, Ovenbirds and Woodcreepers) are Buff-throated Woodcreeper (about 40%), Wedge-billed Woodcreeper (about 20%) and Elegant Woodcreeper (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black-tailed Leaftosser is recorded against all the birds logged in Tambopata National Reserve (217 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.
