Written and illustrated by David Allen Sibley, America's most widely respected bird illustrator and ornithologist, this FoldingGuide offers instant access to just what the beginning birdwatcher needs to know. All 18 species of North American hummingbirds--both common and rare-- are covered. Each entry includes multiple illustrations, descriptive captions, size, and detailed range maps. In addition, the guide includes information on hummingbird behavior, including nesting, hovering and flying technique, necter extractions. Also includes a section of feeders.