3o8 THE FORK-TAILED PETREL 



Mediterranean, and is not an uncommon visitor to our shores, 

 especially during severe weather. 



Its note is only heard during the season of incubation, when its 

 retreat is often betrayed by a low twittering. 



Storm-Petrels are gregarious birds ; they breed in colonies, 

 and sldm the sea in small flocks. The French steamers which sail 

 between Toulon and Algiers are said to be regularly accompanied 

 by these birds. 



THE FORK-TAILED PETREL 



PROCELLARIA LEUCORRHOA 



General plumage like the last ; tail forked ; legs moderate ; membrane dusky- 

 Length seven and a quarter inches. Eggs white, marked with small 

 rusty spots. 



The Fork-TaUed Petrel, a native of North America, does not 

 differ materially in habits from the other species. It is met with 

 almost annually on our east coast, and is common off Cornwall. 

 In Ireland it is frequent. This species was first declared to be 

 a British bird by Bullock, who found it at St. Kilda in 1818. 



