Bearded Guan (Penelope barbata) [XC81332]
by Leonardo Ord\u00f3\u00f1ez-Delgado from Carretera El Cisne - Ambocas, Loja, Ecuador (alarm call)
Bearded Guan (Penelope barbata) [XC5179]
by Andrew Spencer from Quebrada Shambo, Zona Reservada Laquipampa, Ferrenafe, Lambayeque, Peru (alarm call)
Subspecies
Often considered a subspecies of Band-tailed Guan (Penelope argyrotis), with which forms superspecies. Recently suggested to be a subspecies of Andean Guan (Penelope montagnii).
Peruvian population has been awarded separate subspecies, inexpectata, but validity doubtful.
No subspecies.
Similar Species
Most closely resembles Band-tailed Guan (Penelope argyrotis), from which it differs in lacking conspicuous white upperwing-covert markings, its fully feathered chin and upper throat and partially feathered tarsus. Andean Guan (Penelope montagnii) is also similar but lacks a terminal band on the tail.
References
See References.