BIRDS. 83 



347. Larus canus L. Common Gull. 



Winter visitant, common on the coast throughout the 

 autumn, winter, and early spring. A few immature birds 

 frequent the Humber throughout the summer. 



348. Larus argentatus Gm. Herring Gull. 



Resident, common, ha\'ing breeding-stations near Filey, 

 Whitby, and Saltburn ; a few pairs also nest at Bempton. 



349- Larus fuscus L. Lesser Black-backed Gull. 



Winter visitant, common on the coast during the autumn, 

 winter, and spring months \ a few immature birds remain- 

 ing through the summer. 



350. Larus marinus L. Greater Black-backed Gull.. 



Winter visitant, common, arriving on the coast in July, 

 departing in spring for its more northern nesting-stations. 



351. Larus glaucus Fahr, Glaucous Gull. 



Winter visitant to the coast, immature birds being but of 

 uncommon occurrence. Mature birds are rare, but in the 

 severe winter of 1830 considerable numbers occurred, and 

 several have appeared at Flamborough since 1872. 



352. Larus leucopterus Faber. Iceland Gull. 



Casual visitant to the coast in winter, when immature birds 

 have been very rarely observed, but is possibly much 

 overlooked. The adult bird has only once occurred in the 

 county, as recorded by Yarrell in 1843; particulars are 

 not now attainable. 



Redcar, an immature bird, winter of 1854-5 (Rudd, Nat., 

 1855, p. 144). 



Scarborough, immature bird, Jan. 15, 1867 (Knight, Zool., 

 1867, p. 637). 



Flamborough, young bird, Oct. 12, 1867 (Cordeaux, Zool., 

 1867, p. 1010). 



Bridlington, immature m^e, Dec. 15, 1870 (Boynton, Zool., 

 1871, p. 2488). 



Whitby, one in the local collection at the Museum (Stephen- 

 son, MS.). 



