White-tailed Tyrannulet (Mecocerculus poecilocercus) [XC260863]
by Mitch Lysinger from Napo: 'Caba\u00f1as San Isidro', 1-2 km SW Cosanga, Ecuador (begging call, 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.