220 
Mr. F. N. Chasen on the 
[Ibis, 
Haliaetus albicilla. White-tailed Eagle. 
A fair proportion of the Eagles seen were of this species. 
Most numerous in winter, but seen in spring. 
Hieraaetus fasciatus. Bonelli’s Eagle. 
Common on the left bank of the Struma in winter. The 
light breast, which looks quite yellow at long ranges, is a 
good field point. I suspect that the u Ospreys 5 ’ of my 
sportsman friends were usually examples of this Eagle. 
I kept a close watch for Ospreys, but was unsuccessful ; but 
Major Sladen tells me in a letter that he has eggs—taken by 
an officer—from the hills to the south-east of Lake Doiran. 
Heophron percnopterus. Egyptian Vulture. 
Flocks consisting of a score or more of these birds were 
quite common in the summer. The species seemed to be 
most numerous in the direction of the Serbian frontier, where 
the state of the country must have been more congenial to 
their wants than the cleaner area occupied by the British 
forces. One sultry afternoon in April a flock of these 
Vultures remained in the air through a thunderstorm. The 
downpour of hail, which was particularly violent, made no 
appreciable difference to their easy manoeuvring aloft. 
G-ypaetus barbatus. Bearded Vulture. 
Single birds seen on three occasions on the hills at Paprat 
in November. At close range the wedge-shaped tail is very 
conspicuous, and a uniform grey appearance serves to dis¬ 
tinguish the species afar. The closest investigation of all 
large Raptores failed to reveal this species on the plain. 
Gyps fulvus. Griffon Vulture. 
Common, but usually seen at a great height over the 
Struma plain. Bursting shrapnel (anti-aircraft) caused 
them to mount to an even greater altitude. This species was 
only once seen under really favourable circumstances. This 
was in August, when a flock of eight birds descended into 
the valley at Baisili, attracted by the assembling of a large 
