Attributes / relations provided by
♦ ¹"Notes on the biology of the Cock-of-the-rock(Rupicola rupicola)", D. W. Snow, Journal für Ornithologie July 1971, Volume 112, Issue 3, pp 323-333
♦ ²del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.