The Sibley Guide to Birds has quickly become the new standard of excellence in bird identification guides, covering more than 810 North American birds in amazing detail. Now comes a new portable guide from David Sibley that every birder will want to carry into the field.
• Features 650 bird species plus regional populations found east of the Rocky Mountains
• Accounts include stunningly accurate illustrations--more than 4,200 in total--with descriptive caption text pointing out the most important field marks
• Each entry contains new text concerning frequency, nesting, behavior, food and feeding, voice description, and key identification features
• Accounts also include brand-new maps created from information contributed by 110 regional experts across the continent