"2014"^^ . . "Del Hoyo & Collar (2014)" . . "Del Hoyo & Collar (2014)" . . "Del Hoyo, J. & Collar, N.J. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1 : Non passerines. Lynx Edicions, Barcelona. 903 pp." . "2014"^^ .