The garuda, biologically known as greater adjutant ( " Leptoptilos dubius " ), is classified as endangered on the IUCN Red List 2004 of threatened species and listed under Schedule IV of the Indian Wildlife ( Protection ) Act, 1972.
2.
There are 500 species of bird in the region including the critically endangered and possibly extinct white-eyed river martin ( " Pseudochelidon sirintarae " ), the endemic grey-faced tit-babbler ( " Macronous kelleyi " ) and the endangered or threatened Bengal florican ( " Eupodotis bengalensis " ), greater adjutant ( " Leptoptilos dubius " ) and white-shouldered ibis ( " Pseudibis davisoni " ).