Phylloscartes flavovirens
The Panama Tyrannulet (*Phylloscartes flavovirens*) is a petite and vibrant passerine, measuring a mere 10.5-11.5 cm in length and weighing 7.5-9 grams. Its upperparts boast a striking bright olive-green, transitioning to a yellower hue on the rump, while its underparts are a pale yellow, brightening on the throat and belly. Key field marks include a distinct pale yellowish-white eye-ring and two conspicuous yellowish wing-bars set against dark wings, which contrast with its small, dark bill ...
Found in humid montane evergreen forests and cloud forests, favoring dense understory and forest edges, typically at elevations of 700-1800 meters.
Mainly small insects and other arthropods, which it gleans from foliage or catches in short aerial sallies.
The Panama Tyrannulet is a diurnal species, active throughout the day, though its small size and constant movement within the dense canopy often make it difficult to observe. It employs an active foraging strategy, primarily gleaning small insects and arthropods from the undersides of leaves and ...
The Panama Tyrannulet is found exclusively in the humid montane forests of western Panama and adjacent southeastern Costa Rica. In Costa Rica, its range is restricted to the Cordillera de Talamanca, extending eastward into the Chiriquà and Veraguas provinces of western Panama. It typically inhabi...
Least Concern
- One of only a few bird species strictly endemic to the highlands of western Panama and adjacent Costa Rica. - Its scientific name, *flavovirens*, literally means "yellowish-green" in Latin, aptly describing its plumage. - Despite its bright coloration, its small size and constant movement in de...