District Kamrup in the Brahmaputra valley of Assam holds the largest breeding population of the world Endangered (EN) Greater Adjutants (Leptoptilos dubius) presently breeding in India and Cambodia. The species nested on 33 numbers of trees that supported 109 nests of which 95 (87.15%) nests were found successful and fledged 156 juveniles in two breeding colonies. Both the colonies were outside the protected area. L. dubius colonized near human settlements in thickly populated urban and sub-urban areas often 9.5-10.5 Km away from city garbage centre an important feeding ground of the population. Though partial feeding habitat (Deepor Beel Wildlife Sanctuary) is protected. The L. dubius nested on three species trees Anthocephalus cadamba (63.63%), Bombax cebia (33.33%), and Gmelina arborea (3.03%).
