The Oologists' Record, September 1, 1923. 47 



Mgypius monachus. Black Vulture. My series includes 14/1 

 from Roumania, varying from pure white to heavily marked types, 

 and 2/1 from Cyprus. Mr. Swann remarks that the series in the 

 Tring Museum is the finest in existence. This seems to be rather 

 a rash statement in view of the fact that magnificent series exist in 

 continental collections, and one private collection in England contains 

 no fewer that 30 picked eggs, which have never been seen by him. 



[*Pseiidogyps africanus africanns is apparently absent from both 

 Messrs. Gordon's and Swann's collections. It is not a Palaearctic 

 species but I possess one egg, well sprinkled with brown markings, 

 91 X 63-5 mm. (Somaliland).] 



Harriers {Circus) . The eggs of this genus are practically worthless 

 unless taken by capable observers or from districts where only one 

 species nests. The eggs from South Russia are merely identified 

 on grounds of probability by their size. During the present year 

 I took two clutches of C. ceruginosiis ccritginosiis and flushed the 

 hen within a few yards in each case, of which the eggs varied in 

 size from 47 x 35 in one nest to 54-4 X 42-5 in the other. The 

 smaller set might have passed for large eggs of C. cyanens. This was 

 in a locality where only C. ce. cBruginosus breeds. The overlapping in 

 size of the eggs of C. cyanetts, C. macrourus and C. pygargus is well 

 known, but really reliable data with regard to the second species 

 are hard to get. Only one set oiC.ce. harterti is catalogued by Messrs. 

 Gordon and Swann, but the eggs are common enough and I have 

 taken many sets in Spain as well as one from the type locality in 

 Algeria, from whence eggs are almost unknown. 



*Circits melanoleucus. Pied Harrier. A c/5 from the Amur 

 district shows faint brown markings. Size, 44-2 — 45 x 34-5 

 — 35-9 mm. 



Astur gentilis. Goshawk. My series includes eggs from Lapland, 

 Germany, Roumania, Spain and Marocco, and the extraordinary 

 variation in size from north to south gives a very definite forecast 

 of the subdivision of this species into geographical races which is 

 now beginning to be recognized as inevitable.- The Maroccan eggs 

 are much the smallest, while the South Spanish ones come next 

 in size. There is no doubt that when skins are available a new 

 form will be described from Marocco. 



A. g. schvedoit'i. If the race recently described by Mr. Swann 

 from Japan is generally accepted all the eggs in Messrs. Gordon's 

 and my own collection must be transferred to it. 



