15. LAKU8. 277 



Lmnulure. A bird in its .second August exhibits a fair proportion 

 of grey in the mantle ; the new feathers of the scapidars, second- 

 aries, and wing-coverts mottled with grey and brown in an unusu- 

 ally minute manner ; upper (juills beginning to show a little grey 

 at their bases ; tail-feathers more uniform umber-brown than 

 before, though the coverts are wliiter ; underparts whitish brown 

 without any distinct spots : bill yellower at the base. The succeeding 

 stages are unknown to me. 



lYe/itlini/. Stone-grey, with scarcely a tinge of buff ; head boldly 

 marked with black ; upper surface mottled with ash-brown. 



JIab. Western North America, breeding chiefly on the lakes and 

 rivers from the Lower Anderson to Utah ; in winter along the 

 Pacific coast to about 18° N. in Mexico ; once as far east as Kansas. 



a. Juv. sk. North-west America. Capt. Kellett and 



Lt.Wood,K.N.[P.]. 



b. Vixad.sk. Vancouver Island {J. K. N. Aiiier. l^oundary 



Lord). Commission. 



c. S ad. sk. Esquimau Island, Oct. {G. II. Saimders Coll. 



Mathews, E.N.). 



d. Ad. sk. Yellowstone Lake, Aug. {F. II. Saunders Coll. 



J. lime), 

 e-ff. 2 ^^-t c? Washoe Lake, Nevada, Aug. Salvin-Godman Coll. 



imm.,etjuv. sk. {H. W. Henshaio). 

 h, S juv. sk. Tahoe Lake, California, Sept. Salvin-Godman Coll. 



30 {A. Forrer). 

 i. (S pull. sk. Eagle Lake, California, July Salvin-Godman Coll. 



4 (H. W. Henshaw). 

 k. Juv. sk. San Francisco, California Salvin-Godman Coll. 



(-F. Gruber). 

 I. 2 ad. sk. San Mateo, Gala., Oct. (/. H. Saunders CoU. 



Hepburn), 

 m, n. cS 2 ^^- sk. Ventura, Cala., Nov. {Hen- Salvin-Godman Coll. 



shmo). 

 o. (5 ad. sk. San Diego, Cala., April [L. Salvin-Godman Coll. 



Betdiiiff). 



38. Larus canus. 



The White Gull, Albin, Nat. Hist. B. ii. p. 77, pi. 94 (1740). 



Grande Mouette cendree, Briss. Orn. vi. p. 182, pi. xvi. tig. 2 

 (1760) ; Bujf. Hist. Nat. Ois. viii. p. 425 (1783) ; Daubent. PL 

 Eid.Y>l 097 (178H). 



I-arus canus, Briinn. Orn. Bor. p. 43 (1764 : Iceland) ; Lin7i. Syst. 

 Nat. i. p. 224 (1766) ; &o;;. Ann. i. p. 79 (1769) ; P. L. S. Miill. 

 S. N. ii. p. 345 (1773); G7n. S. N. i. p. 596 (1788); Betziia, 

 Faun. Siiec. p. 158 (1790) ; Lath. hid. Orn. p. 815 (1790); Bec/ist. 

 N(dur(/. Deutscht. ii. p. 808 (1791) ; Meyer if Wolf, Taschenb. ii. 

 p. 47o(1810) ; Pallas, Zoogr. Eosso-Asiaf. p. 330 (1811) ; Leisler, 

 Nachtr. Deutschl. p. 14 (1812) ; Meyer, Viiy. Liv- u. Esthl. p. 232 

 (1815): Temm. Man. d'Orn. p. 498 (1815): Melmer S,- Schins, 

 Yog. Schtveiz,-p. 269 (1815) ; Koch, Syst. baier. Zool.^. 374 (1816) ; 

 Leach, Syst. Cat. Mamm. S)C. Brit. Mus. p. 40 (1816) ; Niks. Orn. 

 Suec. ii. p. 172 (1817) ; Temm. Man. d'Orn. 2°" 6d. p. 771 (1820) ; 

 Bote, Isis, 1822, p. 563 ; Meyer, Taxchenb. iii. Zusiitze, p. 200 

 (1822) ; Brehm, Lehrb. p. 707 (1824) ; Steph. in Shajv's Gim. Zool. 

 xiii. pt. 1 , p. 198 (1826) ; Vieill. Faun. Franc, Ois. p. 389 ( 1828 ?) ; 



