Allen Jeyarajasingam has been interested in natural history as a child and picked up birdwatching in 1968 at the age of 9.  He has contributed numerous articles and papers in nature magazines and journals in Malaysia and abroad. A school teacher by profession, Allen used to teach English at a government boarding school in Kuala Lumpur, Malaysia, until his retirement in 2019. He is a member of the Malaysian Nature Society (MNS) and sits on the Bird Conservation Council of the society.  He served as chairman of the council from 1999 – 2002 and was also chairman of the Records Committee from 1998 – 2005. He was one of the editors of the Council’s Bimonthly Bulletin ‘Suara Enggang’ (Voice of the Hornbill). He has co-authored ‘Birds –A Photographic Guide to the Birds of Peninsular Malaysia and Singapore’ and ‘A Field Guide to the Birds of Peninsular Malaysia and Singapore’.

Allen is also passionate about environmental education.