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) [XC248566]
by Jerome Fischer from Pichincha: ridge between R\u00edo Mindo and R\u00edo Nambillo, 3 km SE Mindo, Ecuador (call)
Choco Tyrannulet (Zimmerius albigularis) [XC860664]
by Jos\u00e9 Mar\u00eda Loaiza B. from Distrito Metropolitano de Quito, Pichincha, Parroquia Nanegalito, Nueva Granada, Hacienda Los Yumbos, Ecuador (dawn song)
Subspecies
No subspecies.
Considered by some authors to be a subspecies of Golden-faced Tyrannulet (Zimmerius chrysops).