Family Tyrant-flycatchers (Tyrannidae)

Least Concern

Sulphur-bellied Tyrannulet (Mecocerculus minor)


French: Tyranneau soufré German: Gelbbauch-Tachurityrann Spanish: Piojito azufre

Leptopogon minor


, 1879,

Tambillo, Cajamarca, Peru


See M. calopterus. Monotypic.


Andes of W Venezuela (Táchira), and locally in E range in Colombia, E Ecuador (recorded from W slope in Carchi) and N Peru (S to Huánuco).

Descriptive notes

11·5–12 cm; 11 g. Parulid-like tyrannulet with bright yellow belly. Has thin white supercilium, blackish line through eye, greyish-white face fading to yellowish... read more


A series of weak, somewhat nasal, descending notes, “week-week-week-week” or “chew-chew-chew-chew... read more


Humid montane forest, especially second growth and broken, patchy cloudforest, clearings with... read more

Food and feeding

Insects; occasionally small fruits. Frequently joins mixed-species flocks. Forages actively, with horizontal posture, in outer foliage;... read more


Juveniles in Jul in Ecuador and Aug–Nov in N Peru. No other information.



Status and conservation

Not globally threatened. Rare to locally fairly common, perhaps often overlooked; possibly becomes more numerous to S. Seems to favour edge habitats; may be expanding range... read more

Recommended citation

Fitzpatrick, J. (2019). Sulphur-bellied Tyrannulet (Mecocerculus minor). 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 11 December 2019).