Gubernetes yetapa
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~80% in a week >90%
The streamer-tailed tyrant (Gubernetes yetapa) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Brazil, and Paraguay, and as a vagrant to Uruguay. The streamer-tailed tyrant was formally described in 1818 as Muscicapa yetapa, erroneously placing it in the Old World flycatcher family. It was later transferred to its present genus Gubernetes that was erected in 1825 by George Such, albeit within family "Laniadae" (later Laniidae, the shrikes).
The streamer-tailed tyrant is the only member of genus Gubernetes and has no subspecies. The streamer-tailed tyrant's body is about 35 cm (14 in) long; including the tail the species is 42 cm (17 in) long. The sexes have the almost the same plumage; females are smaller and slightly duller than males and have shorter tails. Adults have a pale gray forecrown and supercilium, a darker gray crown, and a black line through the eye. Their upperparts are gray with dark brown shafts on the feathers. Their wings are mostly blackish with a large cinnamon patch at the base of the primaries that shows conspicuously in flight. The wing's tertials have light... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Emas National Park | 🇧🇷 Brazil | |
| 2 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 3 | Iberá National Park | 🇦🇷 Argentina | |
| 4 | Itatiaia National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | São Paulo | 🇧🇷 Brazil |
Likely
About 50% of wildlife watchers report a Streamer-tailed Tyrant sighting in Emas National Park on a given day, based on 114 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 38th most-seen of the 187 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
June
In that month about 70% of wildlife watchers report a Streamer-tailed Tyrant in Emas National Park on a given day, against about 20% in September, the lowest month. That is one of Emas National Park's driest months, with about 10 mm of rain against 190 mm in January. April and December–February have too few records to rate.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Streamer-tailed Tyrant 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 4 parks where we can rate Streamer-tailed Tyrant sightings, Emas National Park has the highest daily chance: about 50%. Next come Serra da Canastra National Park (Brazil, about 20%) and Iberá National Park (Argentina, under 5%).
Same family: Tyrannidae
The closest relatives of the Streamer-tailed Tyrant that you can see in Emas National Park (family Tyrannidae, Tyrant Flycatchers) are White-rumped Monjita (about 70%), Great Kiskadee (about 60%) and Grey Monjita (about 50%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Streamer-tailed Tyrant is recorded against all the birds logged in Emas National Park (114 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.
