Myiothlypis chrysogaster
Silhouette: Andy Wilson · PhyloPic
In 3 days ~10% in a week ~20%
The Cuzco warbler (Myiothlypis chrysogaster) is a species of bird in the family Parulidae, the New World warblers. It is found in Bolivia and Peru. The Cuzco warbler was formally described in 1844 with the binomial Setophaga chrysogaster. At some time in the nineteenth century it was reassigned to genus Basileuterus that had been erected in 1848. By 2007 taxonomic systems had begun to resurrect genus Myiothlypis, which had been erected in 1850, for chrysogaster and many other species.
Into the twentieth century what are now the Cuzco warbler and the Choco warbler (M. chlorophrys) were treated as a single species, the golden-bellied warbler. By 2012 the IOC had split the two. BirdLife International's Handbook of the Birds of the World (HBW) did the same in 2016, though it kept the name "golden-bellied" warbler for chrysogaster until 2024. The Clements taxonomy adopted the split in 2022. However, as of February 2026 the South American Classification Committee retained the two-subspecies golden-bellied warbler.
This article follows the majority one-subspecies model. The Cuzco warbler is 11.5 to 13 cm (4.5 to 5.1 in) long and weighs 9.2 to... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manu National Park | 🇵🇪 Peru |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Golden-bellied Warbler sighting in Manu National Park on a given day, based on 130 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 364th most-seen of the 641 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.
May and July
In those months about 10% of wildlife watchers report a Golden-bellied Warbler in Manu National Park on a given day, against under 5% in June and August–April, the lowest months. Those are among Manu National Park's driest months, with about 100 mm of rain a month against 290 mm in February.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Golden-bellied Warbler sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Manu National Park, in our data
Manu National Park is the only park on Wallace's Line with enough records to rate Golden-bellied 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 Golden-bellied Warbler is recorded against all the birds logged in Manu National Park (130 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.
