Gubernetes yetapa
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~10% in a week ~30%
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 |
Rare
Under 5% of wildlife watchers report a Streamer-tailed Tyrant sighting in Iberá National Park on a given day, based on 70 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 191st most-seen of the 284 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Streamer-tailed Tyrant in Iberá National Park on a given day, against under 5% in April–May, July and October–February, the lowest months.
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.
3rd of 4
Of the 4 parks where we can rate Streamer-tailed Tyrant sightings, Iberá National Park ranks 3rd at under 5%. The best odds are in Emas National Park (Brazil, about 50%) and Serra da Canastra National Park (Brazil, about 20%).
Same family: Tyrannidae
The closest relatives of the Streamer-tailed Tyrant that you can see in Iberá National Park (family Tyrannidae, Tyrant Flycatchers) are Great Kiskadee (about 80%), Cattle Tyrant (about 70%) and Strange-tailed Tyrant (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 Iberá National Park (70 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.
