Basileuterus trifasciatus
Silhouette: Andy Wilson · PhyloPic
In 3 days ~10% in a week ~20%
The three-banded warbler (Basileuterus trifasciatus) is a species of bird in the family Parulidae, the New World warblers. It is found in Ecuador and Peru. The three-banded warbler was formally described in 1880 with its current binomial Basileuterus trifasciatus. Some authors have treated it as a subspecies of the golden-crowned warbler (M. culicivorus).
The three-banded warbler is 12.5 cm (4.9 in) long and weighs 8.5 to 11 g (0.30 to 0.39 oz). The sexes have the same plumage. Adults of the nominate subspecies have a pale gray crown stripe with black borders, grayish white lores and supercilium, a thin black stripe through the eye, and medium gray ear coverts with a blackish rear edge. Their nape and upper mantle are medium gray, their back and wings olive-gray, and their rump and tail olive. Their throat is white that becomes yellow on the rest of the underparts; the throat and upper breast are smudged with gray. Subspecies B. t. nitidior has a yellow wash on the gray crown stripe and more olive (less... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Podocarpus National Park | 🇪🇨 Ecuador |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Three-banded Warbler sighting in Podocarpus National Park on a given day, based on 53 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 216th most-seen of the 446 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
June and November–January
In those months about 10% of wildlife watchers report a Three-banded Warbler in Podocarpus National Park on a given day, against under 5% in February–May and July–October, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Three-banded Warbler sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Podocarpus National Park, in our data
Podocarpus National Park is the only park on Wallace's Line with enough records to rate Three-banded Warbler sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Three-banded Warbler is recorded against all the birds logged in Podocarpus National Park (53 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.
