138 A CATALOGUE OF THE BIEDS 



some years ago, off the mouth of the Tyne, came into the pos- 

 session of Mr. Thomas Eobson, of "Winlaton Mill, and is now in 

 the collection of Mr. Thomas Thompson, of Winlaton. I have 

 seen the specimen; it is in mature plumage. An immature ex- 

 ample of this rare species in the Siinderland Museum, was shot 

 at Seaton Carew, in February, 1837. 



138. LARUS, Linnmis. 



14. GrLATJCotrs GuLL. L. GLAuciJs, Brunnicli. 



Larus fflaucus, Bewick, Hist. Brit. Birds, Ed, 1847, II., 191, 

 193. 



Yarrell, Hist. Brit. Birds, Ed. 2, III., 595. 



An autumn and winter visitant ; not uncommon on the coast 

 during the winter months in the immature plumage. Adults 

 are rare, though I have received two or three that were shot in 

 our district. 



15. IcELAis^D Gtjll. L. leitcopteutjs, Faher. 



Lams Icelmidicus, Yarrell, Hist. Brit. Birds, Ed. 2, III., 575. 

 ,, ,, Gould, Birds of Gt. Britain, Part XXIV. 



In Mr. Selby's catalogue it is mentioned that a specimen was 

 shot at Holy Island, and was in his collection; and in his " Il- 

 lustrations of British Ornithology," it is stated that he had ob- 

 tained, on the Northumberland coast, three or four specimens, 

 but all in immature plumage. 



This is a rare casual visitant on the shores of Northumberland 

 and Durham. The above captures are the only ones I know of. 



16. Greatee, Black-backed Gull. L. maeinus, Lmnceus. 



Lnrm mar inns, Bewick, Hist. Brit. Birds, Ed. 1847, II., 196, 

 198. 

 „ „ Yarrell, Hist. Brit. Birds, Ed. 2, III., 591. 



Not an uncommon resident ; but most prevalent during autumn 

 and winter. It does not breed in the district. 



