Explanation:

The Amur falcon is a small raptor of the falcon family. It breeds in south-eastern Siberia and Northern China before migrating in large flocks across India and over the Arabian Sea to winter in Southern and East African.

They are the world’s longest travelling raptors which starts travelling with the onset of winters. Hence statement 1 is correct.

The raptors breed in southeastern Siberia and northern China, and migrate in millions across India and then over the Indian Ocean to southern Africa before returning to Mongolia and Siberia. Their 22,000-kilometre migratory route is one of the longest amongst all avian species.

They get their name from the Amur River that forms the border between Russia and China.

Doyang Lake in Nagaland is better known as a stopover for the Amur falcons during their annual migration from their breeding grounds to warmer South Africa. Thus, Nagaland is also known as the “Falcon Capital of the World,”. Hence statement 2 is correct.

The birds are categorised as least concern under the International Union for Conservation of Nature (IUCN) Red List, but the species is protected under the Indian Wildlife Protection Act, 1972,and the Convention on Migratory Species, to which India is a signatory (which means it is mandatory to protect the birds). Hence statement 3 is correct.