Distribution of Lanius schach and the principal groups in it. Base map File:BlankMap-World gray.svg. Distribution based on 

Gliederuch und Verbreitung des Formenkreises Lanius schach L. by A Dunjaewski. J. Orn. 1939
Rasmussen and Anderton 2005 Birds of South Asia. The Ripley Guide. Volume 1.
Own work
Shyamal based on base map File:BlankMap-World gray.svg