White-tailed Tyrannulet (Mecocerculus poecilocercus) [XC405091]
by Jean-Esteban Liberek from Villa Rica-Oxapampa Road, Pasco, Peru (song)
White-tailed Tyrannulet (Mecocerculus poecilocercus) [XC258722]
by John V. Moore from Pichincha: Mindo area, Ecuador (song)
Subspecies
No subspecies.
Genus as presently constituted is probably polyphyletic, and in need of further study. Syringeal characters suggest that present species and Buff-banded Tyrannulet (Mecocerculus hellmayri), which form a superspecies, as well as White-banded Tyrannulet (Mecocerculus stictopterus), are possibly close to Camptostoma, Inezia and relatives.