1920.] Birds of tlie Canary Islands. 103 



Birds breeding in the PaciHc on the Hawaiian and 

 Galapagos islands have been separated as subs])ecies. The 

 nidification and distribution of this species in all the north 

 Atlantic archi{)clagos is fully dealt with by me in ' The 

 Ibis,' 1914, pp. 451-160. 



Oceanites oceanicus oceanicus. Wilson's Petrel. 



Prucellariu oceanicu Kuhl, Beitriige Zool. i. 1820, p. 130 

 — Type locality : South Atlantic. 



Wilson's Petrel is probably an Annual Visitor to the 

 Canarian seas, usually appearing in late spring, but has been 

 noted at all seasons. 



It is mentioned by several writers, but very few appear to 

 have seen the bird i)ersonally. Meade-Waldo observed it 

 occasionally at all seasons of the year (Ibis, 1893, p. 206), 

 particularly on 15 May, 1888, off Garachico, Tenerife 

 (IMS. note-books). There is also a bird which I have 

 recently examined in the Liverpool Museum labelled "^. 

 Orotava, Tenerife. R. Gomez (Coll.), 16. vi.87.''; and in 

 the British Museum a specimen obtained by Lort Phillips 

 in May ''south of the Canaries.'^ 



It is worthy of notice that the only records occurred in 

 May and June, and that Godmau obtained specimens near 

 Fayal, Azores, on 21 May, 1865 (Ibis, 1866, p. 104). It 

 must be remembered how few^ observers know the bird well 

 enough to recognise it at any distance, and the paucity of 

 actual recoids can be placed to this account. 



Range. Wilson's Petrel breeds in the South Polar regions, 

 migrating northwards in winter. It has a very wide dis- 

 tribution in all seas excepting the north Pacific. I have 

 dealt with its occurrences in all the north Atlantic islands 

 in ' The Ibis,' 1914, pp. 460-461. 



Pelagodroma marina hypoleuca. North Atlantic Frigate- 

 Petrel. 



Thalasshlroma lujpoleuca jMoquin - Tandon, in Webb, 

 Berthelot et Moquin-Taudon, Orn. Canarienne, 1841, p. 45 

 — Type locality : Tenerife. 



This Frigate- Petrel is probably a rather scarce Annual 



