DUSKY PETREL. 337 



either end. The young are fit to take in August, when 

 great numbers are killed and salted for provision by the in- 

 habitants. In the Orkneys they are also valued for their 

 feathers. They arrive in February, but do not settle down 

 to breed until April, and they migrate by the beginning of 

 September. During the day they keep out at sea fishing, 

 and return to their young towards evening. Their habits, 

 generally, are wholly similar with those of the Stormy 

 Petrels. 



The Manks Puffin is about 15 inches in length. The summit of 

 the head, nape, and generally all the upper parts of the body, the 

 wings, tail, thighs and edges of the inferior tail coverts of a black 

 which appears glossy. All the lower parts white. The sides of the 

 neck waved. Bill blackish-brown. Legs and feet dark brown, the 

 webs yellowish. 



DUSKY PETREL. 



(Pv-ffinus obscurus, Cuvier. Bonap. Synops. No. 313. Procellaria 

 obscura, Gmel. Syn. i. p. 559. Lath. Ind. ii. p. 828. sp. 24. 

 Temm. Man. d'Orn. ii. p. 808. Dusky Petrel, Lath. Synops. vi. 

 p. 416. Penn. Arct. Zool, Suppl. p. 73. Stor. degli Ucc. 5. pi. 

 538.) 



Sp. Charact. — Bill very slender, 1| inches long ; tail rounded, the 

 wings extending to its tip ; tarsus little more than 1 inch long. — 

 ^dult glossy brownish-black, beneath white : bill blackish. 



This species is so nearly related to the preceding, that it 

 appears almost the same, but diminished in size. It chiefly 

 inhabits the temperate and warmer seas contiguous to both 

 continents. It is rarely seen in the Mediterranean, but is 

 found in all the Archipelago, and is very common on the 

 coasts of Africa, at the Cape of Good Hope, and the north- 

 west coast of America. It is never seen in the north. 

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