Lathrotriccus euleri
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~10%
Euler's flycatcher (Lathrotriccus euleri) is a small passerine bird in the family Tyrannidae, the tyrant flycatchers. It is found on Trinidad and in every mainland South American country except Chile. It formerly was found on Grenada.
Euler's flycatcher has a complicated taxonomic history. Subspecies L. e. flaviventris was originally described as Blaccicus flaviventris. Subspecies L. e. lawrencei was originally described as Ochthaeca flaviventris but later renamed Empidonax lawrencei. In the early 1900s genus Empidochanes was merged into Empidonax. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 2 | Itatiaia National Park | 🇧🇷 Brazil | |
| 3 | El Palmar National Park | 🇦🇷 Argentina | |
| 4 | Iberá National Park | 🇦🇷 Argentina | |
| 5 | Amboró National Park | 🇧🇴 Bolivia | |
| 6 | Tijuca National Park | 🇧🇷 Brazil | |
| 7 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 8 | Iguazú National Park | 🇦🇷 Argentina | |
| 9 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 10 | Iguaçu National Park | 🇧🇷 Brazil | |
| 11 | Tambopata National Reserve | 🇵🇪 Peru | |
| 12 | Manu National Park | 🇵🇪 Peru | |
| 13 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 14 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 15 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 16 | Yasuní National Park | 🇪🇨 Ecuador | |
| 17 | Podocarpus National Park | 🇪🇨 Ecuador |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Curitiba | 🇧🇷 Brazil | |
| 2 | Belo Horizonte | 🇧🇷 Brazil | |
| 3 | São Paulo | 🇧🇷 Brazil | |
| 4 | Rio de Janeiro | 🇧🇷 Brazil | |
| 5 | Santos | 🇧🇷 Brazil | |
| 6 | Santa Cruz de la Sierra | 🇧🇴 Bolivia | |
| 7 | Asuncion | 🇵🇾 Paraguay | |
| 8 | Maceió | 🇧🇷 Brazil | |
| 9 | Buenos Aires | 🇦🇷 Argentina | |
| 10 | Porto Alegre | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Euler's Flycatcher sighting in Tambopata National Reserve on a given day, based on 64 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 359th most-seen of the 550 birds we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
June
In that month about 10% of wildlife watchers report a Euler's Flycatcher in Tambopata National Reserve on a given day, against under 5% in July to May, the lowest months. That is one of Tambopata National Reserve's driest months, with about 80 mm of rain against 420 mm in February.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Euler's Flycatcher sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
11th of 17
Of the 17 parks where we can rate Euler's Flycatcher sightings, Tambopata National Reserve ranks 11th at under 5%. The best odds are in Serra dos Órgãos National Park (Brazil, about 40%), Itatiaia National Park (Brazil, about 20%) and El Palmar National Park (Argentina, about 10%).
Same family: Tyrannidae
The closest relatives of the Euler's Flycatcher that you can see in Tambopata National Reserve (family Tyrannidae, Tyrant Flycatchers) are Tropical Kingbird (about 20%), Boat-billed Flycatcher (about 20%) and Forest Elaenia (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Euler's Flycatcher is recorded against all the birds logged in Tambopata National Reserve (64 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.
