BRITISH WARBLERS 



lands, especially, in the latter countries, along the banks of 

 the Rivers Scheldt and Meuse. I did not find it as common 

 as I should have expected in the Island of Texel : it passes 

 over Heligoland in great numbers. 



Continuing northwards, we find it generally distributed 

 throughout Denmark and breeding in suitable localities. In 

 the south of Sweden it is common, then becomes rarer as far 

 as the south of Norrland, but north of this it apparently does 

 not occur : it is unknown in Gothland. In the south of 

 Norway it is rare, but has been observed in the Jaderen 

 district and up to Laurgaard; north of this it disappears 

 until we reach Dynnaso in the Helgeland district, where it 

 becomes more common again and reaches as far north as 

 Finmark. 



Returning to Central Europe, we find it generally dis- 

 tributed over Germany and especially common in the marshy 

 parts of Mecklenburg, Holstein and Westphalia; also in 

 Hessen and along the banks of the Rivers Moselle and Elbe ; 

 rare, however, in Sachsen-Altenburg, but very common in 

 Silesia. In Switzerland it is fairly numerous, especially in 

 the low-lying country and valleys round Geneva and Lake 

 Constance, but in the central and northern parts it is rarer, 

 although inhabiting some of the lower sub-alpine valleys, 

 especially Hasli. In Italy it is common in all the marshy 

 parts, but not so numerous in Sardinia, and rare in Corsica. 

 Eastwards, we find it again common in the Austro-Hungarian 

 Monarchy, especially in the central plains along the banks 

 of the Danube. Whether it breeds in Montenegro is doubtful, 

 but immense numbers pass on migration. On the east side 

 of the Balkan Peninsula we find it common in the reed- 

 beds of Yarna and Pravadia in Bulgaria, but further inland 

 less numerous. 



In Greece it is a bird of passage only, appearing on 

 migration in large numbers from the end of March to the 

 end of May. It may, however, have been overlooked as a 



