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 Belém on a given day, based on 33 verified sightings from GBIF citizen-science data. It is the 53rd most-seen of the 144 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.
April, September–October and December
In those months about 20% of wildlife watchers report a Pectoral Sparrow in Belém on a given day, against about 10% in January–March, May–August and November, the lowest months.
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 3 cities where we can rate Pectoral Sparrow sightings, Belém has the highest daily chance: about 10%. Next come Goiânia (Brazil, about 10%) and Maceió (Brazil, under 5%).
Same order: Passeriformes
The closest relatives of the Pectoral Sparrow that you can see in Belém (order Passeriformes, Perching Birds) are Great Kiskadee (about 90%), Palm Tanager (about 90%) and Pale-breasted Thrush (about 80%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pectoral Sparrow is recorded against all the birds logged in Belém (33 verified sightings), 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.
