One of several old splits that were never carried through - Pericrocotus flammeus is restricted to birds from southwestern India and Sri Lanka, with the rest becoming P. speciosus
Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/ (連結)