186 Mr. F. N. Chasen on the [Ibis, 
well within the sphere of hostilities for the greater part of 
the war. 
There is no need to dwell on the geographical nature of 
the country, its vegetation or other issues likely to affect 
its ornithology, for all this information is available—in a 
concise form—in a paper by Capt. Alan G. Ogilvie, O.B.E., 
published in the ‘Geographical Journal' (vol. lv. no. 1, 
Jan. 1920). 
The observations from which the following notes were 
compiled were made during a period extending over a little 
more than eighteen months spent with the Allied Army in 
Macedonia. The writer was stationed for the greater part of 
this period on the Struma plain, but the long excursions 
that ordinarily fall to the lot of a mounted soldier, gave 
ample chances for bird-watching in the hill district that lies 
between the swiftly flowing river and the coast. 
The area with which we are concerned in this paper may 
be said to form a crude triangle with its base along the line 
Lake Doiran-Seres and its apex at Salonica. 
Opportunities for detailed or continuous observation are of 
necessity very limited when on active service and all dates 
given are inclusive, that is to say, they do not necessarily 
imply the absence of a species at other times. Most of the 
birds mentioned below are very familiar species, and only 
those are included the identification of which was certain. 
I was not in a position to collect skins, although I skinned 
quite a number of birds simply through inability to let a 
good specimen waste. What few I did get together were 
lost—with a mule—during the blizzard at Lahana, in 
March 1918. For this reason I have made no attempt to 
discriminate subspecies, and all doubtful records—however 
interesting—have been ignored. 
I have to thank my very kind correspondent, Major Alex. 
G. L. Sladen,for the infinite amount of trouble he has taken 
in reading through my paper. In some cases we worked 
over the same ground, and Major Sladen has let me have 
some most interesting notes which have come to hand since 
the publication of his own papers. 
