Amazon.com description: Product Description: This new larger edition is based on the recently updated fourth edition of the standard-format Sasol Birds of Southern Africa. The region’s best-selling, most comprehensively illustrated and trusted field guide, it offers: Rewritten species accounts, now with group introductions; Newly designed plates for ease of use and comparison; More than 380 new improved illustrations; Illustrations with simplified labels, pinpointing key differentiating features; Updated distribution maps showing relative abundance and indicating resident or migrant status; Calendar bars showing species’ occurrence and breeding periods, and sonograms depicting the calls of difficult-to-distinguish birds that have distinctive calls. The larger format allows for better appreciation and easier use of the plates.