Family Tyrant-flycatchers (Tyrannidae)

Least Concern

Olive-streaked Flycatcher (Mionectes olivaceus)


French: Pipromorphe olive German: Olivkopf-Pipratyrann Spanish: Mosquero oliváceo

Mionectes olivaceus


, 1868,

Barranca, Costa Rica


Hitherto considered conspecific with M. galbinus, but differs in slightly paler, greyer olive on all upperparts and breast (1); marginally brighter yellow on belly (ns); and highly distinctive song, a seemingly continuous note, in fact many very short (score 4) and very rapid (4) notes, oscillating in pitch#R. Differs further from adjacent (and parapatric or near-parapatric) race hederaceus of M. galbinus in its slightly smaller size but with notably smaller bill (at least 1). Monotypic.

What do (1) and (2) mean? Learn more about the scoring system.

E Costa Rica and W Panama.

Descriptive notes

12–13 cm; 14·5 g. Crown and nape, face and ear-coverts dark olive, feather shafts of face white, conspicuous white spot behind eye; upperparts warm yellow-green... read more


Like formerly conspecific M. galbinus, species is usually silent or at least largely... read more


Found at mid-levels in wet forest, although descends to shrub layer at edges or in adjacent second... read more

Food and feeding

Diet and foraging behaviour probably very similar to those of M. galbinus; at least 50% of diet in Costa Rica estimated to... read more


Eggs in Apr–Jul in Costa Rica. Nest structure, situation and description basically as that of M. galbinus: pyriform, with... read more


Descends to lowlands during non-breeding season in Costa Rica, reaching just 50 m above sea-level... read more

Status and conservation

Not globally threatened (Least Concern). Generally considered fairly common in both Costa Rica and Panama, where frequently caught in mist-nets; species is easily overlooked... read more

Recommended citation

Fitzpatrick, J., de Juana, E. & Kirwan, G.M. (2020). Olive-streaked Flycatcher (Mionectes olivaceus). 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 26 January 2020).