Urban Olsson Author

Clive Byers is a professional birder and bird illustrator who made his first sketches in a field notebook at the age of 11. His enthu­siasm has led him in pursuit of birds throughout Europe, Africa, Asia, and the Americas. He illustrated A Guide to the Warblers of the Western Palearctic and has contributed illustrations to a number of journals and books. Urban Olsson's extensive travels in the northern hemisphere in search of birds have resulted in the discovery of several previously undescribed or unrecognised species, and several identi­fication and taxonomic papers. He is a member of the Swedish Rarities Committee and co-founder of Regulus Travel. Currently, he is working on a doctoral thesis on avian systematics at the University of Gothenburg. He lives in Gothenburg, with his wife and their two young children. Jon Curson is co-author of the definitive and widely acclaimed New World Warblers. He has spent much of the last 10 years studying birds at obser­vatories and in the field in North America, and has made several long research trips to Mexico and the tropics. He has contributed several papers on American warblers to various ornithological journals and is a committee member of the Neotropical Bird Club.