Myiothlypis fulvicauda
Silhouette: Andy Wilson · PhyloPic
In 3 days ~10% in a week ~30%
The buff-rumped warbler (Myiothlypis fulvicauda) is a species of bird in the family Parulidae, the New World warblers. It is found from Honduras south to Bolivia. The buff-rumped warbler was formally described in 1825 with the binomial Muscicapa fulvicauda.
The buff-rumped warbler has a complicated taxonomic history since its original description. At some time in the nineteenth century it was reassigned to genus Basileuterus that had been erected in 1848. In 1929 W. E. Clyde Todd erected a new genus, Phaeothlypis, with it as the type species. However, many authors retained it in Basileuterus. In the early twenty-first century several studies confirmed that many species in Phaeothlypis were nested within Basileuterus but that the latter was polyphyletic. By 2007 taxonomic systems had begun to resurrect genus Myiothlypis, which had been erected in 1850, for the buff-rumped warbler and many other species.
The buff-rumped warbler has these six subspecies: Wikipedia →
With luck
About 10% of wildlife watchers report a Buff-rumped Warbler sighting in Machalilla National Park on a given day, based on 40 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 133rd most-seen of the 248 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
July and September–December
In those months about 10% of wildlife watchers report a Buff-rumped Warbler in Machalilla National Park on a given day, against under 5% in January–June and August, the lowest months. Those are among Machalilla National Park's driest months, with about 15 mm of rain a month against 140 mm in February.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Buff-rumped 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.
14th of 32
Of the 32 parks where we can rate Buff-rumped Warbler sightings, Machalilla National Park ranks 14th at about 10%. The best odds are in Farallones de Cali National Natural Park (Colombia, about 50%), Arenal Volcano National Park (Costa Rica, about 40%) and Braulio Carrillo National Park (Costa Rica, about 30%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Buff-rumped Warbler is recorded against all the birds logged in Machalilla National Park (40 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.
