Xenops tenuirostris
Silhouette: Sheatherius · PhyloPic
In 3 days <5%
The slender-billed xenops (Xenops tenuirostris) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela.
The slender-billed xenops is 10 to 11.5 cm (3.9 to 4.5 in) long and weighs 9 to 11 g (0.32 to 0.39 oz). Its namesake bill is wedge-shaped, and longer and thinner than those of other xenops. The sexes are alike. Adults of the nominate subspecies have a blackish brown face with a dark brown crown that is spotted and streaked buff, a buffish white supercilium, and a pure white malar streak. Their back is rufescent brown with short, wide, elongated creamy buff spots on its upper part. Their rump and uppertail coverts are reddish rufous. Their tail's central and outermost pairs of feathers are rufous and the others mixed black and rufous; the black is visible in the field. Their wing coverts are dark brown with rufous edges and their flight... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Podocarpus National Park | 🇪🇨 Ecuador | |
| 2 | Manu National Park | 🇵🇪 Peru | |
| 3 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 4 | Yasuní National Park | 🇪🇨 Ecuador | |
| 5 | Tambopata National Reserve | 🇵🇪 Peru |
Rare
Under 5% of wildlife watchers report a Slender-billed Xenops sighting in Sierra de la Macarena National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 399th most-seen of the 418 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
July
In that month about 10% of wildlife watchers report a Slender-billed Xenops in Sierra de la Macarena National Park on a given day, against under 5% in August to June, the lowest months. That is one of Sierra de la Macarena National Park's wettest months, with about 360 mm of rain against 95 mm in January.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Slender-billed Xenops sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 5 parks where we can rate Slender-billed Xenops sightings, Sierra de la Macarena National Park ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Podocarpus National Park (Ecuador, under 5%) and Manu National Park (Peru, under 5%).
GBIF citizen-science records
It is estimated from how often the Slender-billed Xenops is recorded against all the birds logged in Sierra de la Macarena National Park (5 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.
