FORKED-TAILED PETREL. 643 



VA TA TORES. LA RIDM. 



THE FORKED-TAILED PETREL. 



TJialassidroma Leachii. 



Procellaria Leachii, Fork-tailed Petrel, BEWICK, Brit. Birds, vol. ii. p. 261. 



Bullockii, FLEM. Brit. An. p. 136. 



Thalassidroma ,, n Storm SELBY, Brit. Ornith. vol. ii. p. 537. 



Procellaria Leachii Leach's JENYNS, Brit. Vert. p. 286. 



Thalassidroma Bullockii, Fork-tailed EYTON, Rare Brit. Birds, p. 101. 



Leachii, ,,Storm,, GOULD, Birds of Europe, pt. xi. 



Procellaria Petrel de Leach, TEMM. Man. d'Ornith. vol. ii. p. 842. 



Thalassidroma Thalassidrome vol. iv. p. 512. 



THIS species of Petrel is but very little smaller in size 

 than the bird last described, but is at once distinguished 

 from it by its forked tail, and its shorter legs. The first 

 specimen of this bird was obtained at St. Kilda in the 

 summer of 1818, by Mr. Bullock, during a tour round the 

 coast of Scotland, principally undertaken with a view to 

 investigate its ornithology. At the sale of Mr. Bullock's 

 collection in the spring of 1819, this specimen was bought 

 by Dr. Leach, and transferred to the national collection in 



