PETRELS 313 



Staffa, and Treshnish, in Skye, and in all three 

 groups of the Western and Northern Isles. Mr. 

 J. H, Gurney was informed that it breeds on small 

 islands off the coast of Pembrokeshire, although this 

 has not been confirmed by Mr. Murray Mathew in 

 his volume on the birds of that county. 



In Ireland this bird breeds on Mutton Island, 

 Miltown Malbay, Co. Clare {Field, Aug. 15, 1863), 

 and according to Mr. Ussher in great numbers off 

 the Kerry coast, on the Skelligs, the Blasquets, 

 Puffin Island, and Scariff. It is probably this species, 

 and not P. leachii, as has been asserted, which 

 nests on Slyne Head. 



LEACH'S PETREL. Procellaria leachii, Temminck. 

 PI. 35, fig. 3. Length, 8-5 in. ; bill, 0-75 in. ; wing, 6 

 in. ; tarsus, 0-9 in. 



The Fork-tailed Petrel, named after an English 

 naturalist, breeds at St. Kilda in the Outer Heb- 

 rides, where it was first noticed as a British bird 

 by Bullock in 1818. Messrs. Harvie-Brown and 

 Buckley report it as breeding on Borera, Mingalay, 

 Barra, and North Rona, as well as in the Isle of 

 Rum, A view of one of its nesting haunts on North 

 Rona forms the subject of a full-page plate ("Fauna 

 of the Outer Hebrides," p. 154). In Mingalay Mr. 

 H. J. Elwes found it breeding in holes and cracks 

 in the dry peat on the top of the cliffs. 



Vigors, which, based upon the same type, was not founded until 1825 

 (Zool. Journ., vol. ii. p. 405). Yet the generic name Tludassidroma 

 is employed by Jardine, Bonaparte, Naumann, Gould, Gray, Mac- 

 gillivray, and other authors of repute. 



