Reviergesänge und Speziesdifferenzierung in der Klappergrasmücken-GruppeSylvia [curruca]

Territorial songs of the nearly trans-PalaearcticSylvia curruca complex recorded in various area parts of the three major taxa groups (curruca, althaea, minula) are analyzed. Playback experiments substantiate the differences between the three groups. In view of their locally sympatric distribution and distinct territorial songs thecurruca, althaea andminula groups are considered different species of superspeciesSylvia [curruca].