Polystictus pectoralis
Silhouette: Emily Willoughby · PhyloPic
In 3 days <5%
The bearded tachuri (Polystictus pectoralis) is a Near Threatened species of bird in subfamily Elaeniinae of family Tyrannidae, the tyrant flycatchers. It is found in every mainland South American country except Chile, Ecuador, and Peru.
The bearded tachuri shares genus Polystictus with the grey-backed tachuri (P. superciliaris) but several authors have described the relationship as weak and needing confirmation. As of late 2024, the bearded tachuri is assigned these three subspecies:
Polystictus pectoralis bogotensis (Chapman, 1915) Polystictus pectoralis brevipennis (Berlepsch & Hartert, EJO, 1902) Polystictus pectoralis pectoralis (Vieillot, 1817) The bearded tachuri is 8 to 10.5 cm (3.1 to 4.1 in) long and weighs 6 to 8 grams (0.21 to 0.28 oz). Adult males of the nominate subspecies have a dusky gray to blackish crown with a bushy but usually flattened crest; the crown's white center is mostly hidden. They have a short white supercilium and a thin blackish line through the eye on a face that... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Emas National Park | 🇧🇷 Brazil | |
| 2 | Iberá National Park | 🇦🇷 Argentina |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Buenos Aires | 🇦🇷 Argentina | |
| 2 | Montevideo | 🇺🇾 Uruguay |
Rare
Under 5% of wildlife watchers report a Bearded Tachuri sighting in Buenos Aires on a given day, based on 67 verified sightings from GBIF citizen-science data. It is the 206th most-seen of the 274 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Bearded Tachuri in Buenos Aires on a given day, so our monthly data shows no clear season.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Bearded Tachuri 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 2 cities where we can rate Bearded Tachuri sightings, Buenos Aires has the highest daily chance: under 5%. Next come Montevideo (Uruguay, under 5%).
Same family: Tyrannidae
The closest relatives of the Bearded Tachuri that you can see in Buenos Aires (family Tyrannidae, Tyrant Flycatchers) are Great Kiskadee (about 90%), Cattle Tyrant (about 50%) and White-crested Tyrannulet (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bearded Tachuri is recorded against all the birds logged in Buenos Aires (67 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.
