If one has queries on Indian avian ecology, then BNHS ENVIS is the place to go to. It is one of the centres established under the Environmental Information System (Envis) programme of the Ministry of Environment, Forests and Climate Change (MoEFCC), Government of India.

ENVIS is responsible for uploading new photographs and updating contributors on Internet of Birds (IOB), a joint venture by BNHS and Accenture to facilitate online bird identification. It maintains the database of bird rings sent out to researchers. The back issues of Buceros, a newsletter published by the department, is uploaded here.

Envis has started certificate courses in bird identification and migration study techniques, with the approval of MoEFCC under Green Skill Development Programme. More such short-term courses are on the anvil. ENVIS witnesses a steady flow of new members through its website, and office and public events like workshops, festivals and exhibitions.