THE IBIS. 
ELEVENTH SERIES. 
Vol. III. No. 2. APRIL 1921. 
XI.— Field Notes on the Birds of Macedonia . With special 
reference to the Struma Plain. By F. N. Chasen, Castle 
Museum, Norwich. 
Introduction. 
The present paper is offered as a small contribution to our 
knowledge of the ornithology o£ a comparatively unknown 
part of Europe. In spite of the existence of more than 
forty original papers dealing with the birds of the Balkan 
Peninsula, the Struma plain still remains terra incognita to 
the ornithologist. The earlier publications contain little 
more than scattered references to the birds of this very 
interesting district, and more recent investigators have, like 
myself, carried out their work whilst subject to military 
discipline. 
Ur. Erwin StresemamPs new book, ‘ Avifauna Macedonica,’ 
for the loan of a copy of which I have to thank Mr. W. L. 
Sclater, is exhaustive in its way, but as it was compiled 
largely from material accumulated during the war it— 
naturally enough—does not deal at any length with the 
Struma plain, which was either in Allied occupation or 
SIGH. XI.-VOL. III. 
o 
