CATALOGUE OF BIRDS. 105 



ARCTIC TERN.— (Mature and Immature, 



Autumn.) 



Case 110. 



During August and September large numbers of these 

 birds may be met with along the southern and eastern 

 coasts while on their journey to their winter quarters. 



The case represents an old bird in the change from 

 the summer plumage, and the young of the year. 



The specimens were shot at sea, off Benacre Sluice, 

 a few miles north of Southwold, in Suffolk, in August, 

 1873. 



SCAUP DUCK. 



Case 111. 



When living in the Highlands, I have occasionally 

 noticed a few pairs of Scaups remaining so late in the 

 summer, that I fancied they must be nesting some- 

 where in the neighbourhood : the drakes being often 

 observed without the ducks, strengthened the belief ; 

 but, from never having had time to thoroughly watch 

 them, I can state nothing with certainty. 



They arrive in this country about the same time as 

 the Pochard. Though decidedly more marine in their 

 habits, they nevertheless often make their appearance 

 on inland waters in both England and Scotland. 



They are known among the gunners on the south 

 coast as Frosty Back Wigeon. 



The specimens in the case were shot in Edderton 

 Bay, in the Dornoch Firth, in March, 1869. 



