Dr. PETER RYAN is an associate professor at the Percy FitzPatrick Institute of African Ornithology at the University of Cape Town, a partner of 'Birding Africa' and a keen birder who has led numerous birding tours in southern Africa. A long-standing member of the SA Rarities Committee, his research interests include the evolutionary ecology of birds and island conservation. He is co-editor of the current revision of Roberts' Birds of Southern Africa.