Gubernetes yetapa
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~50% in a week ~80%
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 |
Possible
About 20% of wildlife watchers report a Streamer-tailed Tyrant sighting in Serra da Canastra National Park on a given day, based on 102 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 97th most-seen of the 294 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
May
In that month about 30% of wildlife watchers report a Streamer-tailed Tyrant in Serra da Canastra National Park on a given day, against about 10% in March, June–July and September, the lowest months. That is one of Serra da Canastra National Park's driest months, with about 40 mm of rain against 280 mm in January.
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.
2nd of 4
Of the 4 parks where we can rate Streamer-tailed Tyrant sightings, Serra da Canastra National Park ranks 2nd at about 20%. The best odds are in Emas National Park (Brazil, about 50%).
Same family: Tyrannidae
The closest relatives of the Streamer-tailed Tyrant that you can see in Serra da Canastra National Park (family Tyrannidae, Tyrant Flycatchers) are Great Kiskadee (about 60%), White-rumped Monjita (about 50%) and Crested Black-Tyrant (about 40%), 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 Serra da Canastra National Park (102 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.
