Bo Beolens is perhaps best known as his online personae, `Grumpy Old Birder' and `Fatbirder'. After a successful career in community work and managing various charities, he returned to his home county of Kent where he now spends all his free time birding or pursuing his lifelong interest in the natural world. He is co-author of three other eponym dictionaries, and has recently published a book of memoirs.
Michael Watkins worked in London for 45 years as a shipbroker. No longer active in the business, he is still associated with it as a tutor for the industry's professional body, the Institute of Chartered Shipbrokers. Since retiring, he has had more time for birding and travelling, though never quite enough. Michael Grayson spent most of his working life at the British Library in London. His chief interests are vertebrate taxonomy and nomenclature, and the captive husbandry of exotic species.
He is a Fellow of the Zoological Society of London.