Bordoibam-Bilmukh Bird Sanctuary:
Assam bird sanctuary records 72% decline in bird species count in 27 years.
- The Bordoibam-Bilmukh Bird Sanctuary (BBBS) in Assam, once a thriving habitat for diverse avian species, has experienced a 72% decline in bird species count over the past 27 years.
- This alarming biodiversity crisis has been attributed to anthropogenic pressures such as fishing, poaching, egg collection, and land-use changes.
Bordoibam-Bilmukh Bird Sanctuary:
- It is a large freshwater lake situated on the boundary of Dhemaji and Lakhimpur districts in Assam and covers an area of approximately 11.25 sq. km.
- It was originally part of the River Subansiri (a tributary of the Brahmaputra), which now flows 7 km away from the lake.
- Experiences a moist tropical climate with an average annual rainfall of about 2,000 mm.
- Dominated by flooded valley grasslands and wetland vegetation.
- Avian Biodiversity: Hosts a variety of migratory waterfowl in winter.
Home to globally threatened species such as the Spot-billed Pelican (Pelecanus philippensis) and Lesser Adjutant (Leptoptilos javanicus).
