BIRDS OP THE HUMBER DISTRICT 185 



the Lincolnshire and Norfolk coasts, also in the middle 

 of the North Sea, during the second and third weeks 

 in July. By the end of August both old and young 

 have entirely forsaken the cliffs, and gone out sea- 

 ward ; a stiff breeze from the E. or N.E. in this month 

 is said to hasten the autumn migration, and to clear 

 the rocks of their numerous tenants. 



During the nesting-season the Guillemot flies daily 

 immense distances to and from its feeding-grounds, 

 Flamborough birds going as far south as the Norfolk 

 and Suffolk coasts, and northward to the Durham 

 coast, halfway between the Tees and Tyne, where 

 they are joined by the Farn -Island birds. 



240. URIA TROILE (var. LACRYMANS) . Ringed 

 Guillemot. 



Provincial. Silver-eyed Scout. 



The Ringed Guillemot is not common at Flam- 

 borough. I have seen it on one or two occasions on 

 the Speeton Cliffs, in company with the Common 

 Guillemot, but never more than a single bird in the 

 course of the day. Before the passing of the "Sea-bird 

 Preservation Act/' about half-a-dozen were shot 

 annually at Flamborough*. 



* This variety of the Common Guillemot appears gradually 

 to increase in numbers as we proceed northward. On the Farn 

 Islands they are far more numerous than at Flamborough. Mr. 

 Howard Saunders (Zoologist, 1866, p. 186) saw several on the 

 "Pinnacles," during his visit to these islands in June 1865. 

 On Ailsa Crag, Mr. R. Gray calculates the proportions as one 



