Mangroves are salt tolerant, complex and dynamic eco-systems that occur in tropical and subtropical inter-tidal regions. Bhitarkanika is one such location of rich, lush green vibrant eco-system lying in the estuarine region of Brahmani- Baitarani in the North-Eastern corner of Kendrapara district of Odisha. The area is intersected by a network of creeks with Bay of Bengal on the East. The alley between the meandering creeks and rivers, houses the second largest viable mangrove eco-system of India. Its 672 km² of mangrove forest and wetland provides home to well over 215 species of birds including winter migrants from central-Asia and Europe. Giant salt water crocodiles and a variety of other wildlife inhabit this eco-system which is one of Asia's most spectacular wildlife sanctuaries.