BLACK-THROATED DIVER. 269 



("Birds of Suffolk," p. 246). After Dr. Babington's 

 death this specimen passed into the collection of the 

 Hon. Walter Rothschild. Mr. Seebohm states (" Zoolo- 

 gist," 1885, p. 144) that another British specimen exists 

 in the Museum of Newcastle-on-Tyne, which was shot 

 on the coast of Northumberland. Professor Newton 

 informs me that in 1864 he recognised an example of 

 this species in the Museum at Bergen, which he was 

 assured had been obtained in Norway, while Professor 

 Collett has recorded (" Nyt Magazin fur Naturvidenska- 

 berne/' 1877, p. 218) one shot in Flekkefjord, in the 

 south of Norway, in November, 1875. It is obvious, 

 therefore, that this form, conspicuous by its large 

 ivory-coloured beak and greater expanse of wing, as 

 noticed by Sir James E.oss in the Natural History 

 appendix to his father's " Second Voyage in Search of a 

 North-west Passage " (p. xlii.), visits north-western 

 Europe not very unfrequently, and it may well be ex- 

 pected to occur in Norfolk.^ 



COLYMBUS ARCTICUS, Linn^us. 

 BLACK-THROATED DIVER. 



This species occurs in Norfolk between the months 

 of November and March, most of the specimens having 

 been met with in the first three months of the year. 

 The greater number even at this season are immature, 



* Professor Newton, in his article " Diver," contributed by him 

 to the later issue of the ninth edition of the " Encyclopoedia 

 Britannica," adds to his notice of Colymhus glacialis : — " In this 

 connexion should be mentioned the remarkable occurrence in 

 Europe of two birds [supposed to be] of this species, which 

 had been previously wounded by a weapon presumably of trans- 

 atlantic origin. One had ' an arrow, headed with copper, sticking 

 through its neck,' and was shot on the Irish coast, as recorded 

 by Thompson (' Natural History of Ireland,' iii., p. 201) ; the other, 

 says Herr H. C. Miiller (' Vid. Medd. nat. Foreuing,' 1862, p. 35). 

 was found dead in Kalbaksfjord in the Faeroes, with an iron-tipped 

 bone dart fast under its wing." This article is not to be found in 

 the earlier issues of the edition, a fact which may justify the above 

 quotation. 



