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) [XC884585]
by Jos\u00e9 Mar\u00eda Loaiza B. from Distrito Metropolitano de Quito, Pichincha, Parroquia Nanegalito, Nueva Granada, Hacienda Los Yumbos, Ecuador (begging call)
Choco Tyrannulet (Zimmerius albigularis) [XC891751]
by Jerome Fischer from Distrito Metropolitano de Quito, Pichincha, Parroquia Nanegalito, Nueva Granada, Hacienda Los Yumbos, Ecuador (call)
Subspecies
No subspecies.
Considered by some authors to be a subspecies of Golden-faced Tyrannulet (Zimmerius chrysops).