Field Guide to Birds East of the Rockies

Field Guide to Birds East of the Rockies by Roger Tory Peterson. paperback edition. ISBN: 9785550551493.

This edition of A Field Guide to the Birds, the flagship book of the Peterson Field Guide Series, is more than a revision; it is completely new, with 136 plates, as against 60 in the previous edition. Every illustration is new or redrawn. All species are now shown in color; some are repeated in monochrome, but only when flight patterns are more clearly diagnosed in that way. There are also 390 three-color maps, a new feature.