Two-banded Warbler (Myiothlypis bivittata) [XC99606]
by Peter Boesman from Lower Manu Road, Cuzco, Peru (song)
Two-banded Warbler (Myiothlypis bivittata) [XC361119]
by Niels Krabbe from Jujuy: PN Calilegua: Aguas Negras, Argentina (duet)
Subspecies
Closely related to and may form a superspecies with Golden-bellied Warbler (Myiothlypis chrysogaster). They are separated altitudinally in small area of southern Peru where ranges overlap. Subspecies roraimae geographically remote from the other two, and treated as a separate species by some recent authors.
The following 3 subspecies are recognised:
roraimae (Lafresnaye & d'Orbigny, 1837) - Tepuis of southern Venezuela, western Guyana and northern Brazil. Considered by some authors to be a distinct species, Roraiman Warbler (Myiothlypis roraimae).
bivittata (d'Orbigny and Lafresnaye, 1837) - Eastern slope of central Andes from southern Peru south to central Bolivia.
argentinae (Zimmer, JT, 1949) - Eastern slope of Andes from south-central Bolivia south to northern Argentina.