90 



XEW ZRALAND JIIRDS. 



144. Prion banksii. S»i!/Ii. 



Baxks's Dove-Petrel. 



Like lurtiir, but willi a broadei' bill, and tlie chin only lialf-fcatberecl. 

 L., 11 ; W., 7 ; 13., 1-2 ; T., 12 ; widtli of bill, --lo. 



145. Prion vittatus. GmL 



Broad-billed Dove-Pktrel. 



Like titrfur, but -nith the bill nuicli swollen, and the chiu nearly naked. 

 L., 11 ; W., 7 ; B., lo ; T., 1-2 ; width of bill, G. 

 i!;,7_5r.— White ; length, 2 ; breadth, 1-5. (Gould.) 



" Altliongli closely roscmbling the preceding species in the colours 

 of the plumage, this Prion may be readily distinguished by the 

 peculiar form of its bill, Avliieh is mucli dilated at the base, and very 

 conspicuously pectinated along the edges." — Buller. 



TiiALASsiDROMA. Tlgon. 



Bill, shorter than the head, Aveak, nasal tube long and elevated ; first quill never Ihe 

 longest ; tarsi, long and slender ; hind toe, minute ; tail, more or less forked. 

 All parts of the world. 



146. Thalassidroma fregata. Lhin. 



WniTE-PACED StormPeteel. 



Top of Ihe head, hind part of neck, and a spot on eaeli side of the breast, grej ; back and 

 wing-coverts, bronn ; upper and lower tail-coverts, blui^ih-grey. 



L., 8 5 ; W., G-25 ; B., -7 ; T., 1 G5. 



i-^^.—White; length, 1-5; breadth, 1-12. (Gould.) 



i/a6.— Both Islands. 



" The White-faced Storm-Pctrcl appears to have a wide range over 

 the southern ocean. It is not so plentiful, however, off the New 

 Zealand coast as the next species, although the habits of the two 

 birds appear to be precisely alike. Mr, Gilbert discovered it building 

 in some of the small islands lying off Cape Leuwin, in South 

 Australia^ in December; and he met with youn^- birds, almost ready 



