Phylloscartes flavovirens
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~10% in a week ~20%
The Panama tyrannulet or yellow-green tyrannulet (Phylloscartes flavovirens) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is endemic to Panama. The Panama tyrannulet was originally described as Leptopogon flavovirens in 1862 and by the mid twentieth century had been transferred to genus Phylloscartes. Some early twentieth century authors considered the Panama tyrannulet and what are now the olive-green tyrannulet (P. virescens) and mottle-cheeked tyrannulet (P. ventralis) as conspecific. The three are now treated by many authors as a superspecies.
The Panama tyrannulet is monotypic. The Panama tyrannulet is 10 to 11 cm (3.9 to 4.3 in) long; one female weighed 8.8 g (0.31 oz). The sexes have the same plumage. Adults have grayish white lores and a white eye-ring. A dusky band through the eye continues around the yellowish ear coverts. Their upperparts are olive green with a slighter grayer crown. Their wings are dusky with yellowish olive green to yellower edges on the flight feathers. Their wing coverts are dusky with large pale yellow tips that form two wing bars. Their tail is grayish brown with pale olive... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Darién National Park | 🇵🇦 Panama | |
| 2 | Parque Natural Metropolitano | 🇵🇦 Panama | |
| 3 | Chagres National Park | 🇵🇦 Panama | |
| 4 | Soberanía National Park | 🇵🇦 Panama |
Rare
Under 5% of wildlife watchers report a Yellow-green Tyrannulet sighting in Darién National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 265th most-seen of the 397 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
January and November
In those months about 10% of wildlife watchers report a Yellow-green Tyrannulet in Darién National Park on a given day, against under 5% in February–October and December, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Yellow-green Tyrannulet sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 parks where we can rate Yellow-green Tyrannulet sightings, Darién National Park has the highest daily chance: under 5%. Next come Parque Natural Metropolitano (Panama, under 5%) and Chagres National Park (Panama, under 5%).
Same family: Tyrannidae
The closest relatives of the Yellow-green Tyrannulet that you can see in Darién National Park (family Tyrannidae, Tyrant Flycatchers) are Bright-rumped Attila (about 20%), Tropical Kingbird (about 20%) and Acadian Flycatcher (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yellow-green Tyrannulet is recorded against all the birds logged in Darién National Park (17 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.
