OF BRITISH BIRDS 95 



Cuculus glandarius. 

 Falco cenchris. 

 Neophron percnopterus. 

 Gyps fulvus. 

 Oursorius gallicus. 

 Glareola pratincola. 

 Fuligula rufina. 



The breeding range of one species is subtropic and tropic : 

 Ardea comata. 



Species whose Breeding Eange extends from the Atlantic 

 to Longitude 60. 



The breeding range of four species of British Birds extends 

 from the Atlantic as far east as the Ural Mountains, about 

 longitude 60. They all breed in a subarctic climate, but the 

 range of the last mentioned is also subtropic : 



Accentor modularis, 

 Lanius excubitor. 

 Parus cristatus. 

 Parus cmruleus. 



Species whose Breeding Range extends from the Atlantic 

 to Longitude 50. 



The breeding range of nineteen species of British birds extends 

 from the Atlantic to about longitude 50, an area which embraces 

 the valleys of the Dwina and the Volga, the Caucasus, Asia Minor, 

 and Palestine. 



None of them are exclusively arctic in their breeding range, 

 but three species breed in arctic arid subarctic climates : 



Anthus obscums. 



Larus fuscus. 



Cinclus aquaticus mdanogastcr. 



