Millions of blue tiger and dark blue tiger butterflies are moving in Tamil Nadu, heading from the Eastern Ghats to the Western Ghats as the North-East monsoon sets in. The annual migration is now visible in several parts of the state, including Coimbatore, Salem, Erode, Tiruppur and Madurai.

For butterfly enthusiasts, this is the time to step outside, watch the skies and count the butterflies as they pass through their cities.

DISCLAIMER: This article is based on information from the public domain and/or the experts we spoke to.

Butterfly migration visible in Coimbatore

The migration has been spotted over Tiruchy Road in Coimbatore, where blue tiger and dark blue tiger butterflies were seen flying overhead. What began with a few sightings soon turned into a much larger movement, with common crows also spotted in the area.

The butterflies were travelling from the Eastern Ghats towards the Western Ghats, following their annual migratory route.…