Procellaria pelagica, Linn. Syst. Nat. i. p. 212 (1766) ; Naum. x. p. 557, pl. 275, fig. 1 ; Hewitson, ii. p. 517, pl. cxlv. fig. 1 ; (Audub.), B. Am. pl. 340 ; (Gould), B. of E. v. pl. 448 ; (id.), B. of Gt. Brit. v. pl. 86 ; (Dresser), viii. p. 491, pl. 613, fig. 1 ; Salvin, Cat. B. Br. Mus. xxv. p. 343 ; Saunders, p. 727 ; Lilford, vi. p. 123, pl. 53 ; Ridgway, p. 70.
Thalassidrome tempete, French ; Alma de mestre, Portug. ; Uccello delle tempeste, Ital. ; Schwalben-Sturmvogel, German ; Stormvogeltje, Dutch ; Lille-Stormsvale, Dan. ; Liden-Stormsvale, Sorron-Pedder, Norweg. ; Stormsvala, Swed.
Male ad. (Orkneys). General colour sooty black, the under parts paler and browner ; median wing-coverts with pale tips ; base of upper tail- coverts and of tail, sides of crissum, and under tail-coverts white ; tail almost square ; bill and legs black ; iris dark brown. Culmen 0.58, wing 4.6, tail 2.15, tarsus 0.9 inch. Sexes alike.
Hab. North Atlantic Ocean, breeding on the Faeroes, Orkney, and Shetland Islands ; of rare occurrence in Scandinavia as far north as the Lofoten Islands ; the Mediterranean and the African coasts south to the Cape on the west, and occurs between the Zambesi and Zanzibar on the east side ; on the American coasts south to the Banks of Newfoundland ; is replaced by P. tethys, Bp., off the Galapagos, this species being larger, with the upper tail-coverts white and the tail emarginate.
Essentially an oceanic bird the Storm-Petrel only frequents land for the purpose of nidification. It is tolerably swift on the wing, and skims the waves, following their undulations. It feeds on any fatty substance on the surface of the water, small molluscs, &c. During the breeding season it frequents islands, usually remaining in the holes during the day and wandering out to sea in the night. Late in June a single egg is deposited in a hole, or amongst the stones, the nest being scantily lined with plant-stems. The egg is rather elongated-oval in shape, the surface of the shell rather chalky, white in colour, gene¬rally with a zone of pale reddish dots round one end, and measures about 1.12 by 0.85.
1158. Procellaria pelagica