Del Hoyo, J, A Elliott, and D Christie, eds. 2008. Handbook of the Birds of the World. Volume 13: Penduline-tits to Shrikes. Barcelona: Lynx Edicions. ISBN 978-8496553453
Del Hoyo, J, A Elliott, and D Christie, eds. 2008. Handbook of the Birds of the World. Volume 13: Penduline-tits to Shrikes. Barcelona: Lynx Edicions. ISBN 978-8496553453