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.

    Publisher: Christopher HelmDate of Publication: 1990Binding: soft backEdition: ReprintCondition: Fine/Very Good +Description: 0747030235 Soft vinyl cover, with dustjacket.