1920.] Bi7'ffs of the Canary Islands. 107 



1915, p. 120 — Type locality : Isla Graciosa, Eastern Canary 

 Islands. 



This race of Kulil's Shearwater is a Summer Visitor to 

 the Canary Islands, absent only three months in the year. 



I lab. in Archipelago. 



The seas of all the islands, breeding on the following 

 islands and rocks : — 



Western Group : Gian Canaria, Tenerife, and probably 



Palma, Goniera. Hierro. 

 Eastern Group : Fuerteventura, Lanzarote. 

 Outer islets : Lol)Os, Graciosa, Montana Clara, Alle- 

 granza, Roque del Este, Roque del Oueste. 



Obs. In the Bulletin of the British Ornithologists' Club, 

 vol. XXXV. 1915, pp. 118-120, I showed that the Shearwater 

 inhabiting the north Atlantic islands could no longer retain 

 the name P. k. flavirostris Gould, which form is confined to 

 the Cape seas, and is a totally distinct bird from the form 

 inhabiting the Canaries and islands to the north of this 

 Archipelago. I therefore proposed the new name Pvffinus 

 kuhli fortanatus for the latter bird and recognised five 

 distinct geographical races of this Shearwater. 



Dr. Hartert then wrote to me that he believed the Shear- 

 water which bred in the north Atlantic archipelagos (Azores, 

 Madeira, Salvages, and Canary Islands) was identical with 

 P. k. borealis of Cory ; and if this proves to be the case then 

 Cory's name has undoubted precedence over mine, and the 

 Canarian bird must then be known as P. k. borealis, which 

 Hartert has already accepted. Until they are conclusively 

 proved to be identical — and this to my mind cannot be done 

 until a large series from both sides of the Atlantic are 

 compared — I prefer to treat the birds from the other side 

 of the Atlantic as distinct under Cory's name. At present 

 we have only a very few American specimens, though an 

 enormous series from the African islands is in the British 

 and Tring ISIuseums. 



P. k. borealis is not yet known to breed off the American 

 continent, but if, as Dr. Hartert thinks, it wanders across 

 the Atlantic from the African islands, it is curious that it 



