466 Ml'. D. A. Bannerman on the Distribution of 



Cabrera particularly mentions this bird in his list of 

 species found in the Canaries as well as " Puffinus cinereus 

 Kuhl and Puffinus anglnrum Kulil/' He says it is only 

 found in company with these two species. 



7. PufiBuus kuhli flavirostris (Gould). Yellow-billed 

 A-tlantic Shearwater. 



Type locality— Cape Seas, 36° 39' S., 10° 3' E. 



Procellaria flavirostris Gould, Ann. & Mag. Nat. Hist. xiii. 

 1844, p. 365. 



Puffinus kuhli (Boie) ; Godman, Monograph of Petrels, 

 p. 94 (part.), pi. 26. 



Breeding range in the North Atlantic Islands. 

 Azores, Madeira Group, Salvage Is., Canary Is. 



Range beyond the North Atlantic Islands. 

 Probably has a wide range in the Atlantic Ocean. Re- 

 placed by allied races in the Mediterranean Seas and in the 

 Cape Verde Islands ; possibly also on the eastern American 

 coast. 



General Conclusions. 

 There does not appear to be much difference in the 

 breeding-season of Puffinus kuhli flavirostris in the various 

 groups of islands. The birds appear to arrive at the end of 

 February or beginning of March in the neighbourhood of 

 each separate breeding colony, and begin nesting at the 

 end of May and beginning of June in all the islands. The 

 birds leave the nesting colonies with their young at the end 

 ol: October and beginning of November, and are absent about 

 four months. As will be seen by the range given above, 

 P. k. flavirostris breeds on almost every individual island in 

 all the groups of the North Atlantic with the exception of 

 *the Cape Verde Group, where its place is taken by an allied 

 race. It is undoubtedly the most numerous of all the Shear- 

 waters and Petrels which inhabit this part of the North 

 Atlantic Ocean. 



