Uttar Pradesh, the largest state in India is bestowed with unique natural resources to cater for both resident and migratory birds besides a wide variety of animals and plants. It is one of the finest states in India in terms of variety of its bird life. The rivers like Ganges, Yamuna, Rapti and Gandak which originate in the Himalayas traverse longest distance of their journey in the state. The meandering river system, the ox bow lakes formed and other wetlands provide a magnificent natural habitat for birds. It is an ode to the tolerance and conservation consciousness of the people of the state that such diverse plant and animal populations continue to coexist with humans. Migrating birds flying over 5000 kilometres, above 8500 metres high from regions like Europe, Tibet, Siberia and China make wetlands of Uttar Pradesh their home during months starting from October to February. During this period, the wetlands are completely covered with the large numbers of migratory birds. It is estimated that out of 1300 species of birds found in India, Uttar Pradesh caters to over 500 species. 13 species categorised as globally threatened and near threatened, like Slender Billed Vulture, Bengal Florican, Black Bellied Tern, Sarus Crane, Indian Skimmer, Black Necked Stork etc., find hospitable habitat conditions in Uttar Pradesh.