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The cryptic warbler (Cryptosylvicola randrianasoloi) is a species of Malagasy warbler in the family Bernieriidae. It was formerly placed in the Old World warbler family Sylviidae.[citation needed] It is endemic to Madagascar.[citation needed]
del Hoyo, J.; Elliot, A. & Christie D. (editors). (2006). Handbook of the Birds of the World. Volume 11: Old World Flycatchers to Old World Warblers. Lynx Edicions. ISBN 84-96553-06-X.