Dasgupta, Soumya, and Hilaluddin. “Differential Effects of Hunting on Populations of Hornbills and Imperial Pigeons in the Rainforests of the Eastern Indian Himalaya”. Indian Forester, vol. 138, no. 10, Oct. 2012, pp. 902-9, doi:10.36808/if/2012/v138i10/27642.