Arremon taciturnus
Silhouette: Juan Camilo Cepeda-Duque · PhyloPic
In 3 days ~30% in a week ~60%
The pectoral sparrow (Arremon taciturnus) is a small species of New World sparrow first described in 1779 by Georges-Louis Leclerc. It has two subspecies. Like other sparrows in its family Arremon, it has pale green-to-olive wings, a distinctive black band going across its breast, however in subspecies nigrirostris it is not continuous and instead breaks in the center. It is found throughout southeastern South America, in subtropical or tropical moist lowland forests. The phenology of its breeding is unknown, however it has been observed nest building as early as August and as late as December. Incubation takes 15–17 days, however the duration of the nestling and fledgling stages are unknown due to a lack of research. It is omnivorous, mainly eating insects and seeds, and are considered a least-concern species by BirdLife International due to its large population and range.
The pectoral sparrow was described in 1779 by French polymath Georges-Louis Leclerc, Comte de Buffon in his Histoire Naturelle des Oiseaux under the French name L'Oiseau Silencieux, meaning "the silent bird". It was also illustrated in a hand-colored plate that was produced to accompany Buffon's book... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manu National Park | 🇵🇪 Peru | |
| 2 | Brownsberg Nature Park | 🇸🇷 Suriname | |
| 3 | Chapada dos Guimarães National Park | 🇧🇷 Brazil | |
| 4 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 5 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 6 | Amboró National Park | 🇧🇴 Bolivia | |
| 7 | Tambopata National Reserve | 🇵🇪 Peru |
With luck
About 10% of wildlife watchers report a Pectoral Sparrow sighting in Manu National Park on a given day, based on 482 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 142nd most-seen of the 641 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
January and May
In those months about 20% of wildlife watchers report a Pectoral Sparrow in Manu National Park on a given day, against under 5% in February, the lowest month.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Pectoral Sparrow sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 7 parks where we can rate Pectoral Sparrow sightings, Manu National Park has the highest daily chance: about 10%. Next come Brownsberg Nature Park (Suriname, about 10%) and Chapada dos Guimarães National Park (Brazil, about 10%).
GBIF citizen-science records
It is estimated from how often the Pectoral Sparrow is recorded against all the birds logged in Manu National Park (482 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.
