Humid evergreen forest belt of eastern Madagascar.
 
Population
Estimated population is unknown (2010).
Status LC
Habitat destruction and degradation through slash-and-burn cultivation by subsistence farmers is the main threat.
For more information see BirdLife International Species Factsheet.
Cryptic Warbler (Cryptosylvicola randrianasoloi) [XC418937]
by Ken Behrens from Alaotra-Mangoro, Toamasina Province, Madagascar (song)
Cryptic Warbler (Cryptosylvicola randrianasoloi) [XC57883]
by Charles Hesse from Ranomafana trail, Ranomafana NP, Fianarantsoa Prov., Madagascar (song)
Subspecies
No subspecies.
Affinities uncertain. Resembles several other genera of small Old World oscines variously classed as warblers or as babblers (Timaliidae). DNA analysis suggests that closest relatives are among a Malagasy radiation stemming from African sylviids.