Lathrotriccus euleri
Silhouette: Emily Willoughby · PhyloPic
In 3 days <5% in a week ~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 Yasuní National Park on a given day, based on 24 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 455th most-seen of the 533 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Euler's Flycatcher in Yasuní National Park on a given day, so our monthly data shows no clear season.
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.
16th of 17
Of the 17 parks where we can rate Euler's Flycatcher sightings, Yasuní National Park ranks 16th 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 Yasuní National Park (family Tyrannidae, Tyrant Flycatchers) are Tropical Kingbird (about 50%), Great Kiskadee (about 50%) and Lesser Kiskadee (about 40%), 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 Yasuní National Park (24 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.
