Book excerpt: When many birders go out looking at shorebirds, they see a distant mud flat full of grayish brown birds in various shapes and sizes and have no idea where to begin the identification process. When advanced birders look at that same flock of shorebirds, they can identify the vast majority of birds with a quick binocular scan. Experts use the simplest, most easily observed characteristics--size, structure, behavior, and general color patterns--almost subconsciously, and can identify most birds even before looking carefully at plumage details. Now birders of all levels can learn how to identify these wildly popular birds quickly and with much less effort. This guide provides more than 870 stunning color photographs, sequenced to give a general impression of a species first and progressing to a more detailed image of the bird throughout its life cycle. Captions list characteristics in order of importance, reflecting the thought process that experts use to identify birds.