STERCORARIUSPROCELLARIA 843 



Siberian coasts of the Arctic Ocean; Kamchatka and the 

 Commander and Kurile Islands, migrating south in winter, and 

 has once occurred as far south as between the Sandwich and 

 Philippine Islands. In America it occurs in winter south to 

 Florida and California. 



In habits it does not differ from the preceding species, and 

 like it is bold and fearless. During the breeding season at 

 least, it feeds on lemmings, mice, insects, and to a large extent 

 on crowberries. Its cry is described as being a loud dismal 

 shriek, i-i-i-ah, je-ah, je-oh, je-oh. It breeds in colonies in the 

 large marshes and moors in the high north, not far from 

 water, the nest being a mere depression in the ground, some- 

 times lined with a few dry grass-bents, and the eggs, 2 in 

 number, are usually laid in June, and are similar in appearance 

 to those of the Arctic Skua, but as a rule greener in tone 

 and subject to considerable variation. In size they measure 

 about 2-10 by T43. 



The sexes of the birds included in the present genus do not 

 differ ; the young birds are brownish with the upper tail-coverts 

 and under parts barred and the back varied with rufous and 

 brown ; those of S. pomatorhinus and S. parasiticiis are darker 

 than those of S. crepidatus, but S. parasiticus is always dis- 

 tinguishable by having the shafts of the two first primaries 

 only white. The young in down of all three species are brown, 

 those of S. pomatorhinus pale sooty brown with a rufous tinge, 

 those of S. crepidatus sooty brown above, paler below, and 

 those of S. parasiticus are much paler, being grayish brown 

 above and below. 



PROCELLARIA, Linn., 1766. 



1158. STORM-PETREL. 

 PROCELLARIA FELAGICA. 



Procellaria pelagica, Linn. Syst. Nat. i. p. 212 (1766) ; Naum. x. p. 557, 

 pi. 275, fig. 1 ; Hewitson, ii. p. 517, pi. cxlv. fig. 1 ; (Audub.), B. 

 Am. pi. 340 ; (Gould), B. of E. v. pi. 448 ; (id.), B. of Gt. Brit. v. 

 pi. 86 ; (Dresser), viii. p. 491, pi. 613, fig. 1 ; Salvin, Cat. B. Br. 

 Mus. xxv. p. 343; Sannclers, p. 727 ; Lilford, vi. p. 123, pi. 53 ; 

 Bidgway, p. 70. 



Thalassidrome temptte, French ; Alma de mestre, Portug. ; 

 Uccello delle tempeste, Ital. ; Schwalben-Stuvmvogel, German ; 

 Stormvogeltje, Dutch ; Lille-Stormsvale, Dan. ; Liden-Stormsvale, 

 Sorron-Pedder, Norweg. ; Stormsvala, Swed. 



