The complete 16-volume set. Volume 1: Ostrich to Ducks (1992); Volume 2: New World Vultures to Guineafowl (1994); Volume 3: Hoatzin to Auks (1996); Volume 4: Sandgrouse to Cuckoos (1997); Volume 5: Barn-owls to Hummingbirds (1999); Volume 6: Mousebirds to Hornbills (2001);Volume 7: Jacamars to Woodpeckers (2002;Volume 8: Broadbills to Tapaculos (2003);Volume 9: Cotingas to Pipits and Wagtails (2004); Volume 10: Cuckoo-shrikes to Thrushes (2005);Volume 11: Old World Flycatchers to Old World Warblers (2006);Volume 12: Picathartes to Tits and Chickadees (2007); Volume 13: Penduline-tits to Shrikes (2008); Volume 14: Bush-shrikes to Old World Sparrows (2009); Volume 15: Weavers to New World Warblers (2010); and Volume 16: Tanagers to New World Blackbirds (2011).