The chestnut-crowned bush warbler (Cettia major) is a species of warbler found in South Asia. Although overall population size has not been quantified, this is one of the species that is declining due to habitat destruction. Although its population trend is observed to be decreasing, its decline is not happening in rapid fashion. For this reason, this is evaluated as least concern species.
It split from the Chestnut-headed tesia about 5 million years ago.