OF BRITISH BIRDS. 13 



Anas crecca, 

 Anas str'epera, 

 Fuliyiila cristata, 

 Fuligula ferina, 

 Tringa alpina, 

 Scolopax rust /cola, 

 Charadrius pluvialis ; 



one in England and Scotland only — 



Somateria mollissima ; 



three in Scotland and Ireland only — 



Men/IIS serrator, 

 Anas acuta, 

 Anas penelope; 



and six in Scotland only — 



Emberiza nivalis, 

 Podiceps cornutus, 

 Slercoi'arius richardsoni, 

 Stercorarius catarrhactes , 

 Anser cinereus, 

 Mergus merganser. 



The remaining three are more or less common winter visitors to Eng- 

 land, but are not known to visit Ireland, and the last mentioned is 

 unknown in Scotland as well : — 



Alauda alpestris. 



Otis tarda (formerly breeding). 



Regulus ignicapillus. 



Spring and Autumn Migrants. 



All the Spring and Autumn Migrants visit England. Three appear to 

 absent themselves from Scotland, and the same number from Ireland. 

 The number of English spring and autumn migrants may be estimated at 

 32, whilst that of Scotch and Irish is only 29. 



There are 32 British Birds which may be regarded as Spring and 

 Autumn Migrants, though in some cases a few individuals remain In 

 autumn to winter with us and a few remain in spring to breed in some 

 part of our Islands. 



B 2 



