With all-new range maps, updated text, and 40 new paintings, the completely revised editions of two classic Peterson Field Guides are sure to be valuable additions to any birder's pocket or daypack. At a trim size of 5 x 8, they are portable but also beautifully illustrated. Photographs, while modern looking and colorful, capture just one moment in time. The paintings in these guides, however, show all of a bird's key field marks and use the Peterson Identification System to make bird identification easier for beginning and intermediate bird watchers. A team of professional birders has updated the text, the maps, and the art for these authoritative guides.