[2] The area of today's Dudhwa National Park was established in 1958 as a wildlife sanctuary for swamp deer.

[2] Dudhwa National Park is located in Lakhimpur Kheri district of Uttar Pradesh.

[6] Billy Arjan Singh successfully hand-reared and reintroduced zoo-born tigers and Indian leopards into the wilds of Dudhwa.

[9] Dudhwa National Park is habitat of over 400 species of birds, including both resident and migratory.

It includes pea fowl, ducks, geese, hornbills, heron, hawk, bee-eaters, minivets, kingfishers, painted storks, sarus cranes, swamp francolin, woodpeckers, barbets, minivets, bee-eaters, bulbuls, Bengal florican, Asian barbets, drongos, barbets, cormorants, teal, egrets, orioles, painted stork, owls.