South-western Colombia (Nariņo) and western Ecuador (south to Guayas). Considered by some authors to be a subspecies of Golden-faced Tyrannulet (Zimmerius chrysops).
Choco Tyrannulet (Zimmerius albigularis) [XC860668]
by Jos\u00e9 Mar\u00eda Loaiza B. from Distrito Metropolitano de Quito, Pichincha, Parroquia Nanegalito, Nueva Granada, Hacienda Los Yumbos, Ecuador (dawn song)
Choco Tyrannulet (Zimmerius albigularis) [XC262156]
by Olaf Jahn from Esmeraldas: Playa de Oro, village and vicinity, R\u00edo Santiago, Ecuador (call, calls)
Subspecies
No subspecies.
Considered by some authors to be a subspecies of Golden-faced Tyrannulet (Zimmerius chrysops).