Researchers have found the existence of some rare species of birds, Slender Billed Gull and Red Phalarope, and the Jungle Glory butterfly in the country's forest reserves.
Of them, the Jungle Glory butterfly was spotted at Tanchi area of Bandarban hill district when researchers were updating the Red List of Species in Bangladesh for this year.
Prof Monwar Hossain of Jahangirnagar University's zoology department said this particular type of butterfly was last seen in the country some 132 years ago in forests in the Sylhet region.
The findings were unveiled at the 1st preliminary species assessment sharing workshop on updating species Red List of Bangladesh, held at the capital’s Spectra Convention Centre in the capital yesterday.
The Red List estimates the risk of extinction of a certain species which will help to set conservation plans and priority.