300 Oti the Birds oj Macedonia. [Ibis, 



Vanellus vanellus. Lapwing. Almost all migrated in the 

 spring, but two pairs remained and bred at Lake Ardji 

 Glieul. 



Sterna anglica. Gull-billed Tern. I first noticed three 

 pairs oil Lake Ardji Gheul, June 18. They were very noisy, 

 and appeared to resent my intrusion. I did not see any more 

 of these birds, although I visited the same spot fi-equently 

 during the month. I did not find any o£ the five species of 

 Terns breeding, but as I was unable to visit much of the 

 most suitable ground after the end of May, my observations 

 on this point are of little value. I should be very much 

 surprised if Hydrochelidon nigra does not breed in consider- 

 able numbers in the neighbourhood of Lake Ardzan. 



Porzana porzana. Spotted Crake. One was secured 

 about April 19 — a female, with half-formed eggs. 



Birds not positively identified. 



Cygims sp. A. pair of white Swans flew over Lake Ardzan 

 low down (about 80 feet), March 21. 



Numenius arquatus. Curlew. I shot one out of a flock 

 which exactly resembled this species, but the bill was so 

 excessively long (10^ inches from base to tip) that I was not 

 sure of its identity. 



Circus seruginosus. Marsh Harrier. General colour 

 (winter) chocolate, lighter (almost yellow) on the top of the 

 head, under the chin, and on the shoulders. Very common 

 in marshy ground. Found a nest with three eggs (white) 

 in long reedy grass in swamp at Lake Ardji Gheul, June 22. 

 Nest was built of sticks and reed-stalks, about 2 ft. 6 ins. in 

 diameter, on the ground. The bird is common, summer and 

 winter. Size slightly smaller than the Common Buzzard. 



Circus sp. A Hawk with white rump, which is very 

 conspicuous when flying, was seen on several occasions. 

 I did not secure a specimen. 



