Migratory bird: Facts

every year 70,000 to 80,000 migratory birds visit Raiganj Wildlife Sanctuary, an artificially created forest in West Bengal, India?
Maharana Pratap Sagar or Pong Dam Lake, created by the highest earthfill dam in India on the Beas River (pictured), intercepts migratory birds on their trans-Himalayan fly path during each migration season?
Lesser Whistling Ducks are the most prominent species among the migratory birds that visit the lake in the Santragachhi area of Howrah, India, during winter?

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