Bordoibam-Bilmukh Bird Sanctuary

About Bordoibam-Bilmukh Bird Sanctuary:

• It is a small wetland located at the boundary of the Dhemaji and Lakhimpur districts of Assam.
• It covers an area of around 11.25 sq.km.
• It was in 1996 that the then government of Assam officially declared this region a wildlife sanctuary.
• It was part of the River Subansiri (tributary of Brahmaputra), which now flows 7 km away from the lake.
• The sanctuary experiences moist tropical climate with and receives about 2000mm rainfall every year. 
• The vegetation of the sanctuary comprises of flooded valley grassland and wetland. 
• A large number of migratory waterfowl are seen in winter while some globally threatened species such as the Spot-billed Pelican Pelecanus philippensis and Lesser Adjutant Leptoptilos javanicus are seen all over the year. 

Q1: What is the tropical climate?

A tropical climate is identified as a climate characteristic to the tropics; that is from the equator to the Tropic of Capricorn in the south and from the Equator to the Tropic of Cancer in the north. The Koppen climate classification defines a tropical climate as a non-arid climate in which the mean temperature is about 64°F throughout the year. Unlike subtropical regions which are characterized by variations in temperature to different degrees and day length, temperatures in tropical climates remain relatively constant all year long as variations for different seasons are dominated by rainfall. Tropical climates consist of only two seasons which are the dry season and the wet season. 

News: Avian diversity falls over 70% at Assam’s Bordoibam-Bilmukh Bird Sanctuary