2IO PATAGONIAN EXPEDITIONS: ZOOLOGY. 



eggs of Steyiia tyiidcaui were intermediate in their shape and pattern 

 between those of the coast breeding Terns [Sterna) and those of the 

 marsh Terns [HydyocJiclidou). The nests of this Tern were stated to 

 be placed in the swamps, amongst those of the Gull above mentioned." 

 From the Proceedings of the Zoological Society of London, 1891, page 



373- 



"On the 2nd and 3rd October there were some adults of this Gull in 

 Montevideo Bay, though birds in winter and immature dress were far 

 more abundant. They remind one of the Black-headed Gull. In autumn 

 they appeared in the camp. On the 20th April I saw two close to the 

 estancia, and from that time they might often be seen about the camp, 

 sometimes sitting on the carcass of a sheep or cow from which the hide 

 had been taken. On 20th May I shot an adult with a lovely rosy flush 

 on its breast. A few days after there were a great many about the 

 estancia. The cry resembles that of our English species." (O. V. Alpin, 

 on Birds Uruguay, Ibis, p. 211, 1894.) 



Larus glaucodes Meyen. 



Larus ridibundus. King (nee. Linn.) Zool. Journ. IV. p. 104 (1828: 

 Straits of Magellan). 



Lams glaucodes, Meyen, Nov. Act. Acad. Caes. Leop. XVI. p. 115, pi. 24 

 (1834) ; id. Beitr. Zool. p. 239, pi. 34 (1834: Chile) ; Cass. U. S. Astr. 

 Exp. II. p. 204 (1855: coast of Chile); Burm. La Plata Reis. II. p. 

 519, note (1861); Phil. & Landb. Cat. Av. Chil. p. 48 (1868: Com- 

 mon on the coast of Chile) ; Scl. & Sal v. P. Z. S. 1871, p. 578 (Falk- 

 land Is. : Patagonia: Chile) ; Saunders, P. Z. S. 1877, p. 799 (Straits 

 of Magellan); id. 1878, p. 203; id. Voy. Chall. Birds, p. 138 (1880: 

 Messier Channel, Magellan Territory); Sharpe, P. Z. S. 1881, p. 16 

 (Gregory Bay) ; Burm. Ann. Mus. Nac. Buenos Aires, III. part X. 

 p. 248 (1888: Falkland Islands) ; Ridgw. Proc. U. S. Nat. Mus. XII. 

 p. 139 (1889: Port Otway) ; Oust. Miss. Sci. Cap Horn, Oiseaux, p. 

 181 (1891 : Tierra del Fuego : Sloggett Bay: Straits of Magellan: 

 Santa Cruz : Falkland Islands) ; James, New List Chil. B. p. 12(1 892) ; 

 Saunders, Cat. Bds. Brit. Mus. XXV. p. 203 (1896: Egg Harbour, 

 S. E. Patagonia); Schalow, Zool. Jahrb. Suppl. IV. p. 656 (1898: 

 Tumbes, June: Talcahuano: Lago Llanquihue) ; Sharpe, Hand-List, 



