RARE SPECIES SIGHTING: Viewing a group of butterflies fluttering by is always a pleasurable sight. However, the joy of naturalists Sanjoy Sondhi and Purnendu Roy doubled when they discovered not any other butterfly but a rare sub-species, the Tibetan Brimstone at Eaglenest Wildlife Sanctuary in West Kameng district of Arunachal Pradesh. The Tibetan Brimstone has […]