This taxon is Not Recognised as a species by BirdLife International.
Sylvietta leucophrys and S. chapini (Sibley and Monroe 1990, 1993) have been lumped into S. leucophrys following Dowsett and Forbes-Watson (1993) and Fishpool and Collar (2006).
BirdLife International (2016) Species factsheet: Sylvietta chapini. Downloaded from http://www.birdlife.org on 05/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 05/12/2016.