James Ferguson-Lees con Raptors of the World: A Field Guide (Helm Field Guides)
Raptors of the World is the definitive handbook to this most popular group of birds. This field guide uses all of the plates from Raptors of the World, with a concise, revised text on facing pages, to create an invaluable reference covering all 340 raptor species.
"I think this book will definitely improve your chances of working out what you are looking at." "My next birding trip is to Brazil...so this raptor guide will be travelling with me." Keith Betton Birdwatch (June 2006) "I will use it frequently especially as a comprehensive review of the world of raptors and in courses I teach on raptor biology." Clayton M White Brigham Young University Utah, USA Emu - Aural Ornithology (2006) "The guide is certain to be much used and appreciated by raptor enthusiasts worldwide." British Ornithologists Union (2006)
The authors are both highly-regarded ornithologists with a particular interest in raptors. They previously worked together on the award-winning Raptors of the World (Helm).