Family Tyrant-flycatchers (Tyrannidae)

Least Concern

Yellow-bellied Tyrannulet (Ornithion semiflavum)


French: Tyranneau à ventre jaune German: Gelbbauch-Kleintyrann Spanish: Mosquerito ventriamarillo

Tyrannulus semiflavus

P. L. Sclater and Salvin

, 1860,

Choctum, Alta Vera Paz, Guatemala


Previously considered conspecific with O. brunneicapillus (see below); the two were formerly separated in Microtriccus. Monotypic.


S Mexico (Veracruz, N Oaxaca, Tabasco, Chiapas), Guatemala, Belize, Honduras, Nicaragua, and Pacific slope of Costa Rica and extreme W Panama (W Chiriquí).

Descriptive notes

8 cm; 7–8 g. Has white forehead, lores and supercilium; slate-grey crown contrasting sharply with bright olive upperparts; wings and tail dusky olive; auriculars and... read more


Strong, clear, high-pitched, plaintive “deee” or “peeer”, sometimes given as piercing series of 4... read more


Humid tropical evergreen forest, forest edge, older second growth, plantations and gardens with... read more

Food and feeding

Arthropods. Forages singly or in pairs; occasionally joins mixed-species flocks. Actively flits from perch to perch in dense foliage,... read more


Poorly known. Season probably Mar–Jun. Nest uncertain, possibly globular, placed in camouflaged setting such as in dead Cecropia... read more



Status and conservation

Not globally threatened. Uncommon to fairly common; probably often overlooked. Occurs in Río Bravo Conservation and Management Area, Columbia River Forest Reserve and Lamanai... read more

Recommended citation

Fitzpatrick, J. (2020). Yellow-bellied Tyrannulet (Ornithion semiflavum). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 28 January 2020).