34 



BIRDS OF KERGUELEN ISLAND. 



in stony ground. The barrow is similar to that of Halohosna, and the 

 birds begin to lay at about the same time. Both si)eciesbeing nocturnal 

 in their habits, it was difficult to detect any differences between them in 

 note or habits; I did not, at least, succeed in doing so. 



I tirst saw this bird at sea, on the way out, about a hundred miles 

 southeast of Tristan d'Acuuha (South Atlantic Ocean), in July. The 

 V-marking already descri,bed is very prominent when the birds are thus 

 seen ; and their irregularity of flight, using first one wing and then the 

 other, with their tendency to fly in flocks, and disregard of the waste 

 from the ship's galley — traits not common to other petrels — lead to their 

 often being mistaken for shore-birds, or, at least, for that class of birds 

 which are seldom seen far from land. I did not succeed in absolutely 

 identifying any eggs. 



HALOB^NA C^RULEA, [Gm.) Bp. 

 " Whale-Bird." 



ProceMaria ccerulea, Gmelin, Syst. Nat. i, 1788, p. 560, and of authors generally. 



Pachyptila ccerulea, lUiger, Prod. 1811, p. 275. 



Ralohcena ccerulea, Bonapakte, Coosp. Av. ii, 1856, p. 193. 



COUES, Proc. Acad. Nat. Sci. Pbila. 1866, f. 163. 

 Procellaria siniilis, Forster, " ic. ined. 86"; Descr. Auim., ed. Licht. 1844, p. 59. 

 Procellaria forsteri, Smith, 111. S. Afr. B., pi. 54. 



Readily recognized at a glance by the short, square, sharply white-tipped tail. 



There is no difficulty whatever with the specific names of this species ; though I sus- 

 pect that an expert in the intricacies of nomenclature, on diligently applying himself 

 to the case, would discover that a different and i^robahly a new generic name would 

 here be admissible, if not actually required. {Zapriiim, n.) 



This strongly-specialized bird appears to be rather rare in collections. Before exam- 

 ining Dr. Kidder's specimens, the first received at the Smithsonian, I had only seen it 

 in the Philadelphia Academy. — C. 



List of specimens, witli measurements. 



a a 

 « 



|.2 

 B -S 



CO 



a 



a 

 1 



•a 



p 



M 



^ 



tio 

 a 

 o 



§ 





'3 



s 





to 

 B 



e! 



H 



O 



fcJC 



a 

 o 



o 



Remarks. 



68924 

 68922 



68921? 

 68925 



1 



41 



43 



63 

 152 

 153 



141 

 142 

 143 

 144 

 145 

 1 45a 



1874. 

 Sept. 16 

 Oct. 24 



Oct. 29 

 Nov. 13 

 Dec. 11 

 Dec. 11 



Dec. 11 

 Dec. 11 

 Dec. 11 

 Dec. 11 

 Dec. 11 

 Dec. 11 



? 

 ? 



Em 

 Yo 



'To 

 To 

 To 



To 



12.50 

 10.75 



10.75 

 12.00 









1.50 

 1.15 



1.20 

 1.05 











Skin. 



Skin (very pale 



coloring). 

 Skin with egg. 



Do. 

 Alcohol, in shell. 

 Alcohol, 1 week 



old. 

 Alcohol. 



Do. 



Do. 



Do. 



Do. 

 Alcohol ; young 

 of 145. 



26.25 



26.25 

 25.25 



8.25 



7.75 

 8.25 



4.60 



4.50 

 4.75 



1.60 



1.50 

 1.50 



1.35 



1.35 

 1.35 



1.35 



1.40 

 1.35 



0.23 



0.30 

 0.30 





















11.00 



25.85 







8.50 



4.50 



1.20 



1.60 



1.35 



1..50 



0.25 







































11.25 



27. 35 



8.00 



4.00 



1.25 



1.75 



1.50 



1.50 



0.30 





















