62 ORNITHOLOGICAL EXPLORATIONS. 



which here is never called " Toporol,^^ a name reserved for Lunda 

 cirrhata only. 



The Pacific or Horned Puffin is not very common on the islands as com- 

 pared with the Tufted Puffin (Lunda), i)robabV because suitable breed- 

 ing places are scarce, as they require rather deep holes in rocks or be- 

 tween stones. A few pairs, or where the locality offers more nesting 

 opportunities, some small colonies are found scattered among the rook- 

 eries of the other water birds, sometimes higher, sometimes lower than 

 the other species, sometimes in the midst of them, according to wh5re 

 the holes and cracks in the rocks are sitnated. 



As stated above, the nest-holes are found in the rocks, and I never 



saw a single pair breeding in a hole dug ofit of the soft ground, as is 



often the case with F. afctica, and invariably, so far as my experience 



goes, with Lunda cirrhata. 



The voice is an angry orrrr somewhat similar to that of Uria lomvia 

 arra. 



Their attitude, while walking or standing, is upright, although not so 



straight as in dria. While walking they touch the ground with the 



toes and webs only, but rest on the whole sole when sitting. ■ 



Superfamily LAROIDE^. 



Family LARID^. 



16. Larus glaucescens Naumann. 



1840. — Larus glaucescens Naumann, Naturg. Vog. Deutschl , X, p. 351. (nee Bruch 



1853?).— KiTTL., Denkw., I, pp. 359, 2n5, 335.— Dall & Bannist., Tr. 



Chicag. Acad., I, 1869, p. 304.— Baird, Tr. Chicag. Acad., I, 1869 (p.842).— 



FiNSCH, Abh. Brem. Ver. Ill, 1872, p. 83.— Dall, Avif. Aleut. Isl. Unal. 



eastw., p. 8 (1873)— /d., Avif. Aleut. Isl. west Unal., p. 9, (1874).— Swinh. 



Ibis, 1874, p. 163.— Blakist. & Puyer, Ibis. 1878, p. 217.— lid., Tr. As. Soc. 



Jap., VIII, 1880, p. 189.— lid., ibid., X, 1882, p. 103.— Seeb. Ibis, 1879, p. 



23.— Bean, Pr. U. S. Nat. Mus. 1882, p. 168.— Stejneger, Pr. U. S. Nat. 



Mus., 1883, p. 70.— Turner, Auk, 1885, p. 158. 

 1853. — Larus (Glaucus) glaucopterus Bruch, Journ. f. Oru., 1853, p. 101.— Kittl., 



Denkw. I, p. 335 (1858). 

 1873.— iorus fuscus Pelzeln, Verb. Zool. Bot. Ver. Wien, 1873, Sep. p. 8 (fide 



Pelzeln in Utt.) {nee Lin.). 

 1882.— T Larus borealis Taczan., Bull. Soc. Zool. France, 1882, p. 397 (nee Bruch). 

 1883. — Larus leucopterus Nelson, Cruise Corwin, p. 106 {part ? cfr. Stejneger, " The 



Auk," 1884, p. 360). 



Quite a considerable amount of confusion has existed in the nomen- 

 clature of this species, caused by Bruch, who originally (1853) named <v 



