Identification of marsh warblers Acrocephalus palustris and reed warblers a. scirpaceus on autumn migration through the eastern Mediterranean

摘要: Published criteria for the separation of Reed Warbler Acrocephalus scirpaceus and Marsh A palustris in hand were found to be limited value identifying these species samples captured during autumn migration through island Lesvos Aegean Sea. This is probably because morphology varies clinally with birds eastern Europe (likely migrating Lesvos) being more similar Warblers than are populations western from which existing identification calculated. However, a modified biometric index did separate sample 364 August September 1994–1996 1998 into two clear‐cut groups along morphological gradient known distinguish species. We therefore confident that comprised Warblers. Linear Discriminant Function Analysis confirmed this could used identify approximately 95% our sample. The also corre...