The Sibley Guide to Birds

The Sibley Guide to Birds has an innovative design that makes it so user-friendly. Illustrations are arranged to facilitate comparison, yet still capture the unique character of each species. Discover a wealth of new information on the birds of Eastern and Western North America:

• Captioned illustrations show many previously unpublished field marks and revisions of known marks.
• Measurements for every species include length, wingspan, and weight.
• Subspecies and geographic variants are completely covered.
• Voice descriptions are included for every species.
• Maps show the complete distribution of every species for summer and winter ranges, migration routes, and rare occurrences.
• Clear and concise labels with pointers identify field marks directly.

Both novice and experienced birders will apreciate the introductory page for each family or group of related families that makes comparisons simple.