244 BIRDS OF EUROPE AND NORTH AFRICA 



p. kuhli borealis Cory. Bill larger, thicker, higher and 

 somewhat longer ; white on bases of inner webs of primaries not 

 extending beyond coverts. Bill 53-59. 



Breeds, — Azores, Madeira, Desertas, Porto Santo, Salvage 

 Islands, Canary Islands, Occasional visitor to Portuguese and 

 N. American Coasts. Possibly breeds on Berlengas off W. Coast 

 of Portugal. Has occurred once in England. 



Puilinus griseus (Gmelin). Sooty Shearwater. 



^ $ Brown throughout, under wing coverts greyish white 

 with brown shafts, axillaries brown. Bill dull black with narrow 

 white line at base above. Inner side of legs and two inner toes 

 reddish blue, outer side of legs and outer toe black. Wing 

 293-320. Tarsus 55-60. Bill 42-45 (H.). 



Breeds. — Stephen Island, Stewart Island, and Snares Islands off 

 New Zealand ; has also been reported as breeding in Pescadores 

 Islands off Formosan Coast. Occurs in our summer in N. 

 Atlantic, on the European side from Iceland and Scandinavia 

 south to Portugal, fairly often being seen on British Coasts ; and 

 on the American side from Gulf of St Lawrence to S. Carolina. 

 Has occurred widely in S. Seas and also in N. Pacific. 



Ptbrodroma. 



Tarsus rounded in front; nares as in "Puffinus" but 

 separated by a very fine partition ; bill shorter and comparatively 

 higher; 12 tail feathers. 



Pterodroma mollis feae (Salvadori). 



$ $ Above ashy grey, browner on rump, forehead and 

 lores white tipped grey ; a black patch in front of and beneath 

 eye ; beneath white, sides of breast grey, under tail coverts white. 

 Bill black. Legs and bases of inner and middle toes with their 

 web pale flesh, outer toe and ends of other toes with outer web 

 black. Wing 250-273. Tarsus 31-34. Bill 25-29 (H.). 



Breeds. — Madeira, Desertas, Porto Santo, and in Cape de 

 Verde Islands. 



The typical form "P. m. mollis" is a S. Atlantic bird, with a 

 greyish band on upper breast. 



