FORK-TAILED PETREL 



LEACH'S PETREL FORK-TAILED STORM PETREL. 



PLATE CCXXXIL FIGURE III. 



Procellaria leachii, .... BEWICK. JENYNS. 



Procellaria leucorrhoa, . . . VIEILLOT. 



Thalassidroma bullockii, . . . EYTON. 



Thalassidroma leachii^ . . . GOULD. TEMMINCK. 



THIS North Atlantic Petrel breeds at St. Kilda, in 

 burrows in the sand, among stones, or adopts a hole 

 or hollow in the cleft of a wave-worn rock for its nest. 



The egg is white, freckled with minute rusty spots ; 

 only one is laid. It is of large proportionate size. 



179 



