
Naming
Twosubspecies are recognized:⤷ ''E. c. alticola'' – Zimmer & Phelps Sr., 1946: found in Venezuela and the Guianas through Brazil to southeastern Peru and Bolivia
⤷ ''E. c. cristata'' – Pelzeln, 1868: found in Venezuela and the Guianas through Brazil to southeastern Peru and Bolivia
References:
Some text fragments are auto parsed from Wikipedia.