AVIFAUNA OF LAYSAN. 



51 



24. BULWERIA BULWERI (Jard. $ &%). 



BULWEE'S PETREL. 



Procellaria bulwerii, Jard. & Selby, 111. Orn. pi. 65 (1830) (Madeira and adjacent islands). 



Thalassidroma bulweri, Bp. Comp. List, p. 64 (1838) ; Gould, B. Europe, pi. 418; Gray, Gen. B. iii. p. 618 ; 



Newton, Man. N. H. Greenland, 1875, p. 108; Godman, Ibis, 1872, p. 223 (Desertas). 

 (Estrelata bulweri, Cones, Proc. Ac. Phil. 1866, p. 158; Ridgw. Proc. U.S. Nat. Mus. 1880, p. 209. 

 Bulweria bulweri, Bp. Cat. Met. Ucc. Eur. p. 81 (1842) ; id. Consp. ii. p. 194 (1856) ; Ridgw. Water-B. 



N. Amer. p. 398 (1881); id. Man. N.-Amer. B. p. 69 (1887); Coues, Check-1. N.-Amer. B. p. 103 



(1886) ; Stejn. Proc. U.S. Nat. Mus. xii. p. 378 (J 890) (Kauai). 

 Puffinus columbinus, Moq.-Tandon in Webb & Berth. Orn. Canar. p. 44, pi. iv. (1841) ; Bolle, J. f. O. 1855, 



p. 178, & 1857, p. 315 (Canary Is. and Madeira). 

 Bulweria columbina, Brcbm, Vogelfang, p. 354 (1855) j Dresser, B. Eur. viii. p. 551, pi. 614 (1881) ; M.-Waldo, 



Ibis, 1889, p. 517 (Canaries); Kocnig, J. f. O. 1890, p. 463 (Canaries). 



Entire plumage sooty brownish black, the greater wing-coverts much paler and the under- 

 pays browner ; chin and throat with a greyish tinge. Bill black ; iris dark brown ; feet 

 brown ; webs between the toes dusky. Total length about inches, wing 7'8 to 8, 

 tarsus 1*05 ; tail cuneate and much graduated, central feathers 4r4 to 4*55, lateral pair 29 ; 

 bill from gape 1. 



Btjlwer's Petrel is very common on the Canary and Madeira Islands and in their 

 neighbourhood, and is stated to be an accidental visitor to the Bermudas and near the coast 

 of Greenland, and has occurred once in Great Britain. 



The occurrence of this species beyond the Atlantic has been noted by Stejneger (I. <?.), 

 who received specimens from Kauai. 



Palmer found this bird very common on Erench Erigate Islands, whence he sent me 

 eleven skins and half a dozen eggs. They were breeding under dead turtle-shells that 

 had been heaped up by a shipwrecked crew. They were also met with on Laysan ; but there 

 the breeding-season appeared to be over, for not many were seen ashore during the day, 

 while many came at night. 



The eggs are white, and measure from 1-63 by 1*27 and 1*675 by 1*25 inch to 1*7 by 1*28 

 and 1-74 by 13. 



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