Steve Madge has gained first-hand knowledge of most species of corvid during his extensive travels throughout the world and has published widely in journals. His previous book with Hilary Burn, "Wildfowl, was voted ''Best Bird Book of the Year'' in 1988 by the journal "British Birds. He helped form the company Birdquest and is a former member of the British Birds Rarities Committee. Hilary Burn is recognized as one of the leading bird artists in the world. Her work has appeared in many books, including "The Birds of the Western Palearctic, the RSPB Book of British Birds, Wildfowl, and "The Han...