This companion volume to the previous "Guide to the Identification and Natural History of the Sparrows of the United States and Canada" takes sparrow identification one step further. The authors have gathered a selection of over 350 photographs as a basis for the identification of all 64 taxa of emberizine sparrows found in the region. The supporting text gives detailed information on the identification of species, sexes, ages, races, and forms of all the sparrows, towhees, juncos, buntings and longspurs, grassquits and seedeaters, as well as information on their distribution, habits, habitats, molt, and voice. Particular attention is paid to the geographic variation found in many species and to comparisons with similar and confusing species. The conservation status of those that are threatened is also given due attention. The photographs have been chosen specifically to illustrate the identification pointers described in the text. Each is captioned with full details of the photographer and the place and time at which the photo was taken.