White-tailed robin
The white-tailed robin is an Old World flycatcher in the family Muscicapidae. It ranges across the northern regions of the Indian subcontinent and adjacent areas of Southeast Asia. It is found in Bangladesh, Bhutan, Cambodia, India, Laos, Malaysia, Myanmar, Nepal, Taiwan, Thailand, and Vietnam. Its natural habitats are subtropical or tropical moist lowland forest and subtropical or tropical moist montane forest.
in Darjeeling, West Bengal.