Palawan and reportedly also Balabac, in western Philippines.
 
Population
Estimated population is 10,000 - 19,999 (2010) and decreasing.
Status VU
Lowland forest loss, degradation and fragmentation through logging and mining are the major threats.
For more information see BirdLife International Species Factsheet.
Voice
Loud whistled phrases such as 'tuu-wee tu-uu' regularly repeated, interspersed with quieter warbling phrases.
Falcated Wren-Babbler (Ptilocichla falcata) [XC320228]
by Ross Gallardy from Narra, Palawan, Mount Victoria, Philippines (song)
Falcated Wren-Babbler (Ptilocichla falcata) [XC894700]
by Frank Lambert from ZigZag Road, near Puerto Princesa, Palawan, MIMAROPA, Philippines (duet, song)