Featuring as many as 175 birds apiece and nearly 300 photographs, illustrations and maps, this handy, informative book adds two Southwestern states to National Geographic's growing series of field guides. In each guide, an introduction by an expert birder from the region offers guidance on where to look for key birds. An opening section gives pointers on how to look for key birds and what to focus on when you spot them. Two indexes: one alphabetical and one color-coded help readers identify a bird quickly.