Phylloscartes eximius
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~10% in a week ~20%
The southern bristle tyrant (Pogonotriccus eximius) is a Least Concern species of passerine bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Brazil, and Paraguay. The southern bristle tyrant was originally described as Pogonotriccus eximius. The genus Pogonotriccus was later merged into genus Phylloscartes. Beginning in 2016 taxonomic systems resurrected Pogonotriccus for this species and a few others.
The southern bristle tyrant is monotypic. The southern bristle tyrant measures about 11 to 11.5 cm (4.3 to 4.5 in) in length; one male weighed 7.5 g (0.26 oz). Both sexes share the same plumage. Adults feature a gray crown and nape with an olive tint in the middle of the crown. A wide white streak at the lores narrows and becomes grayer over and past the eye to the nape. Their ear coverts are yellow bisected by a wide black crescent. Their back, rump, and tail are bright olive. Their wings are dusky with yellowish olive edges on the flight feathers and wing coverts. Their chin, throat, and underparts are bright yellow with a light olive wash on the breast. Both sexes have a dark brown or dull red iris, a... Wikipedia →
Recording0:23
Brazil · 2022
© Luciano Bernardes · iNaturalist · CC BY-NC 4.0
Recording0:22
Argentina · 2025
© Facundo Varela Barros · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iguaçu National Park | 🇧🇷 Brazil | |
| 2 | Iguazú National Park | 🇦🇷 Argentina |
Rare
Under 5% of wildlife watchers report a Southern Bristle-Tyrant sighting in Iguazú National Park on a given day, based on 144 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 198th most-seen of the 343 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.
July
In that month about 10% of wildlife watchers report a Southern Bristle-Tyrant in Iguazú National Park on a given day, against under 5% in August to June, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Southern Bristle-Tyrant sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 parks where we can rate Southern Bristle-Tyrant sightings, Iguazú National Park ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Iguaçu National Park (Brazil, under 5%).
GBIF citizen-science records
It is estimated from how often the Southern Bristle-Tyrant is recorded against all the birds logged in Iguazú National Park (144 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.
