Subspecies of the oriental carrion crow Corvus (Corone) orientalis Eversmann, 1841

We studied 306 Eastern Carrion Crow skins. As a result, it was possible to confirm the manifestation of geographical variability in this species, expressed in variations in the overall size, size and shape of the bill and the length of the tarsus. 8 signs were measured from each skin: wing length (measured with a tape measure from the outside); wing tip (primaries projection) and tail length (with a ruler), tarsus length; bill length - from the base of the nostril, bill length from the front edge of the nostril; bill height - at its highest point; bill width - at the level of hard bristles at the base of the upper mandible. Birds from 4 groups were compared separately: adult males (M ad), first-year males (M sad), adult females (F ad), and first-year females (F sad). The subspecies do not differ in colour. As a result, we state the reality of five subspecies, two of which we describe for the first time. Corvus orientalis orientalis Eversmann, 1841 Corvus orientalis Eversmann, 1841, Addenda ad celeberrimi Pallasii Zoographiam Rosso-Asiat...