"These laminated, fold-up identification guides-- FoldingGuides -- speak for themselves. Written and illustrated by local experts who know their stuff, waterproof and indestructible, they¿re the perfect choice for beginners and intermediates who want to know what they¿ll encounter in their particular locale. This guide includes 51 bird species, both common and exotic, found in and around the Great Lakes and surrounding watershed. Includes ducks, geese, swans, herons, egrets, bitterns, shorbirds, gulls, and terns.".