Tolmomyias sulphurescens
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~10%
The yellow-olive flatbill or yellow-olive flycatcher (Tolmomyias sulphurescens) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Mexico, in every Central American country, on Trinidad, and in every mainland South American country except Chile.
The yellow-olive flatbill has these 16 subspecies: Since the late twentieth century several authors have suggested that what is now considered a single species is actually several species, perhaps as many as 12. Some authors consider several of the South American subspecies to be "dubious".
The yellow-olive flatbill is 12.5 to 14 cm (4.9 to 5.5 in) long and weighs 14.5 to 15.2 g (0.51 to 0.54 oz). The sexes have the same plumage. Adults of the nominate subspecies T. s. sulphurescens have a dark olive crown and nape, a thin white band above the lores, a thin white eye-ring, and pale olive ear coverts with a dusky patch at their rear. Their upperparts are olive-green. Their wings are dusky... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Campo Grande | 🇧🇷 Brazil | |
| 2 | Goiânia | 🇧🇷 Brazil | |
| 3 | Cali | 🇨🇴 Colombia | |
| 4 | Caracas | 🇻🇪 Venezuela | |
| 5 | Rio de Janeiro | 🇧🇷 Brazil | |
| 6 | Belo Horizonte | 🇧🇷 Brazil | |
| 7 | Santos | 🇧🇷 Brazil | |
| 8 | San Salvador | 🇸🇻 El Salvador | |
| 9 | Manaus | 🇧🇷 Brazil | |
| 10 | Guayaquil | 🇪🇨 Ecuador |
Rare
Under 5% of wildlife watchers report a Yellow-olive Flycatcher sighting in San José on a given day, based on 323 verified sightings from GBIF citizen-science data. It is the 126th most-seen of the 379 birds we can rate there. Over three days the chance rises 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 Yellow-olive Flycatcher in San José on a given day, so our monthly data shows no clear season.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Yellow-olive 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.
14th of 22
Of the 22 cities where we can rate Yellow-olive Flycatcher sightings, San José ranks 14th at under 5%. The best odds are in Campo Grande (Brazil, about 20%), Goiânia (Brazil, about 20%) and Cali (Colombia, about 10%).
Same family: Tyrannidae
The closest relatives of the Yellow-olive Flycatcher that you can see in San José (family Tyrannidae, Tyrant Flycatchers) are Great Kiskadee (about 80%), Tropical Kingbird (about 70%) and Social Flycatcher (about 60%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yellow-olive Flycatcher is recorded against all the birds logged in San José (323 verified sightings), 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.
