Page:The British Warblers A History with Problems of Their Lives - 7 of 9.djvu/101

 It is said to be less abundant than the Sedge Warbler in both Switzerland and Italy. In Greece and Montenegro it is a bird of passage only, but in Bulgaria not uncommon in the Dobrudscha District, and Hungary is visited principally on migration, although some individuals remain throughout the summer.

In Poland it is fairly common in the east, but a rare breeding species in the west. The province of Plock appears to be its stronghold, but it also occurs in the provinces of Warsaw and Suwalki, the latter being the northernmost breeding limit of the species. In Western Russia it is found in the provinces of Volhynia, Minsk, Kiev, Bessarabia and on the Kinburn peninsula. In Eastern Russia it occurs in the province of Perm, near Ekaterinburg in the province of Ufa, and probably in the province of Orenburg near Cheliabinsk. In Algeria and Tunis it is probably resident.

The winter is passed in Greece and Asia Minor, but principally in North Africa.