826 



U. S. p. E. R. EXP. AND SURVEYS ZOOLOGY — GENERAL REPORT. 



Tliese birds abound in the North AtUintic ocean, also in the large bays and straits ; they are 

 constant attendants upon the whalers, and when the process of cutting up a whale commences 

 they assemble in immense numbers, and are so greedy and fearless, at such times, as to approach 

 within a few yards of the men engaged in the work. 



List of specimens. 



PROCELLARIA PACIFICA, Audubon. 

 The Pacific Fulmar. 



Procellaria pacifica, Add. Dm. Biog. V, 1839, 331.— Ib. Birds Am. VII, 1844, 208. 

 Fulmarus glacialis, var. C. pacifica, Bon. Consp. II, 1855, 187. 

 Sp. Ch. — Jidull. Back and wings liglit grayish blue ; the feathers largely terminating vvitli lirovvnish gr;iy ; primaries and 

 coverts blackish brown tinged with gray ; lail brownish gray, white at the base ; head, neck, and under plumage, pure white ; 

 bill, tarsi and feet, yellow. 



Length, 18 inches; wing, 12J ; tail, 4J ; bill, IJ ; tarsus, IJJ. 



Young of a uniform brownisli gray ; a dark spot before llie eye ; primaries brownish black ; bill and legs yellow. 



Hii. — Pacific coast of North America. 



The type specimens are now in the cabinet of Prof. Baird, by whom they have been transmitted 

 to me for examination. 



Differs but little in form and size from the Atlantic bird, but the bill is rather smaller, with 

 the unguis narrower and much weaker ; the nasal case diifers in having its ridge distinctly 

 carinato, and its ujipcr outline straight. Bonaparte considers it as merely a variety of the 

 P. glacialis. 



List of specimens. 



Thalassoica, Reich. 

 PROCELLARIA TENUIROSTRLS, Audubon. 



The Slender-billed Fulmar. 



Procdlaritt ttnuironlrls, Add. Orn. Ijiog. V, 1830, 333.— Ib. Birds Amor. Vll, 1844, 210. 

 Thalassoicu glacialoides, vur. b, Imuiroslris, Bon. Consp. II, 1855, 102. 



Sr. Cii. — Jldult. Back and wings clear grayish blue ; tail of the same colDr, hut rather lighter ; primaries l)rowni,sli black on 

 pbe outer webs and on the inner at the end, remainder of inner webs wliito ; Benondarios dark hluisli gray on llie outer web and 

 ture while on tlie inner; front, top, and aidoa of the head, neck in frunt, and under plumage, wliito ; sides under the wing 



