162 



ORNITHOLOGICAL EXPLORATIONS. 



Table of dhnensiotis. 

 [Taken from the fresh specimens.] 



Olor colttmbianns. 



"1^ 

 oopq <u 



Total length 



Tip of tail beyond closed wings 



Length of bill along gape 



Length from tip to the front of the nostrils. 



Length to the fore border of the eye 



Breadth of bill at the middle of the nostrils. 

 Length of toes with claws: 



Outer toe 



Middle too 



Inner toe 



Hind toe 



Length of tarsus > 



Length of wing 



Length of longest tail-feathers 



Stretch of wings .■ 



The weight of the Bering Island specimen was 12^ pounds. 



It was most likely an accidental straggler, as, in all probability, the 

 other swans observed during the winter belonged to the species commou 

 in the region, 0. cygnns. 



63. Anas boschas Lin. 



17b8.—Ava8 boschas LiN., Syst. Nat.. 10 ed., I, p. 127.— Pall., Zoogr. Ross. As., II, p. 225 

 (1826).— MiDDEXD , Sibir. Eeiso, 11, 2 (p. 229) (1853).— Kittl., Deiikw.,II, 

 p.294(lJ-5&).— ScilRK.N-CK, Reis. Amiirl. I, p. 472 (1860).— SwiNH., Ibis, 1861, 

 p. 344.— W., ibid., 1862, p. 254. — /rf., ibid., 1.^77, p. 146.— 7rf., P. Z. S., 1863, p. 

 324.— irf., ibid., 1871, p. 417.— Blakist., Ibis, 1KS2, p. 332.— M, Clirysautb., 

 1883, p. 27. — Radpe, Ri-is. Siid. Ost-Sibir. II, (p. 363) (1863.)— Dybow. 

 & Parvex, J. f. Oin., 1868, p. 338.— Dall & Banxist., Tr. Chicag. 

 Acad., I, 1869. p. 29().— PnzEW., Putcseb. U.ssnr. (n. 197) (1870).— Dall. 

 Avif. Aleut. Isl. Uual. eastw., p. 5 (1873).— Taczan., J. f. Oru. 1873, p. 109.— 

 Id., ibid., 1874, p. 336.— /rf., Orn. Faun. Vost. Sibir., p. 69 (1877).— M., BulL 

 Soc. Zool. France, 1877, p. 45. — Id., ibid., 1883, p. 343. — Blakist. & Pryer, 

 Ibis, 1878, p. 213.— /W., Tr. As. Soc. Jap., VIII, 1880, p. 183.— lid., ibid., X. 

 1882, p. 96.— Seeb., Ibis, 1879, p. 22.— Hartlaub, J. f. Orn., 1883, p.28l.— 

 Nelson, Cruise Corwiu, ]>. 95 (1883).— Turner, Auk, 188.5, p. 158. 



The Wild Duck is known by the natives as ^^ ISelesenn,''^ being very 

 numerous on Bering Island, and the only member of the group Anaiince 

 wintering there, although in limited numbers. 



