Belize, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua.
Southern Mexico (Veracruz, Tabasco, Chiapas), Guatemala, Belize, Honduras, Nicaragua and Pacific slope of Costa Rica and western Panama (western Chiriquí).
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 50,000 - 499,999 (2010).
Yellow-bellied Tyrannulet (Ornithion semiflavum) [XC612036]
by id from El Diamante, Tarrazu, Puntarenas, Costa Rica (call)
Yellow-bellied Tyrannulet (Ornithion semiflavum) [XC226963]
by Patrick ODonnell from Bonampak, Chiapas, Mexico (call, song)
Subspecies
No subspecies.
Formerly placed in a separate genus, Microtriccus, together with Brown-capped Tyrannulet (Ornithion brunneicapillus). The two form a superspecies. Previously considered conspecific, but now split by most authors on basis of plumage, voice and habitat, also no apparent intergradation where ranges come together in Costa Rica.
BirdLife International Species Factsheet