Although not much attention has been given to bird watching in Nepal by the tourism authorities or by the tour operators, this country abounds in migratory birds. Nepal is home to 8% of the world's population of birds and 11 of the world's 15 families of butterflies. It is also home to the Spiny Babbler, a species which was thought to have been extinct until it was rediscovered in Nepal in 1946. A large population of birds is divided between Chitwan and Kosi Tappu. Vultures like the Lammergeiers are found in very high altitudes in the Himalayas. A large number of migatory birds can be found in Nepal which come from as far as Siberia during winter. Bird watching starts right from the capital, Kathmandu itself and here Phulchowki is an important location.