PLATE VIII 



SEA-GULLS AND YOUNG 



In the foreground are newly hatched young gulls in spotted 

 downy plumage. Above them, and in the attitude assumed 

 just before throwing up food for the young, is a great Black- 

 backed Gull in the full black-and-white plumage of the 

 adult. Above that is a gull in the "plumage before the 

 final stage ; there are still spots on the head and much 

 brown on the wings. The bird highest up on the plate 

 is in an early immature plumage, still completely spotted 

 and mottled. 



