1. Ali, S. (2002). The book of Indian Birds. Oxford University Press, New Delhi, 326 pp.
2. Ali, S & S.D. Ripley (1987). Compact handbook of the Birds of India and Pakistan together with those of Bangladesh, Nepal, Bhutan and Sri Lanka. Oxford University Press, Delhi, India, 737 pp.
3. Clements, J.F., T.S. Schulenberg, M.J. Iliff, S.M. Billerman, T.A. Fredericks, B.L. Sullivan & C.L. Wood (2019). The eBird/Clements Checklist of Birds of the World: v2019 https://www.birds.cornell .edu/clementschecklist/download/. Electronic version accessed 09 May 2021.
4. Gadgil, M. (1996). Documenting diversity: An experiment. Current Science 70: 36–44.
5. Grimmett, R., C. Inskipp & T. Inskipp (2011). Birds of the India, Pakistan, Nepal, Bangladesh, Bhutan, Sri Lanka and the Maldives. Princeton University Press, New Jersey, 528 pp.