
Sulphur-bellied Tyrannulet
NameSulphur-bellied Tyrannulet
Common NameSulphur-bellied Tyrannulet
Scientific NameMecocerculus minor
FamilyTyrannidae
Wingspan (cm)18
Length (cm)11.5
Weight (g)9
Plumage DetailsUpperparts are olive-green, contrasting with a dark grey cap and a faint whitish supercilium. Underparts are bright sulphur-yellow, particularly on the belly. Wings are dark with two prominent whitish or yellowish wing bars and pale edges to the tertials.
Vocalization / CallVocalizations include high-pitched, thin, sibilant notes, often delivered as a rapid series of 'tsit' or 'tsee' sounds, sometimes forming a short trill.
Primary Dietinsectivore
Primary Habitatsforest, mountain
Conservation Statusleast-concern
Geographic RangeFound in the Andes of South America, ranging from Colombia and Venezuela south through Ecuador and Peru to Bolivia.
Identifying FeaturesSmall size, Olive-green upperparts with bright yellow belly, Dark grey cap, Two distinct whitish wing bars, Thin, pointed bill
Description
This small, active flycatcher is characterized by its olive-green upperparts and bright sulphur-yellow underparts. It forages for insects in the mid-story and canopy of humid montane forests, often as part of mixed-species flocks.





