Uria aalge, guillemot 

 Cepphus grylle, black guillemot 

 Fratercula arctica, puffin . . 



(ii) SECONDARY SEA-BIRDS, BREEDING 



Gavia stellata, red- throated diver 

 Gavia arctica, black-throated diver 

 Gavia immer, great northern diver 

 Gavia adamsii, white-billed north- 

 ern diver 

 C Podilymbiis podiceps, pied-billed 

 <( grebe . . 

 [^ Podiceps ruficollis, dabchick 

 Podiceps auritus, Slavonian grebe 

 Podiceps nigricollis, black-necked 



grebe . . 

 Podiceps cristatus, great crested 



grebe . . 

 Podiceps griseigena, red-necked grebe 

 Branta bernicla, brent-goose 

 Tadorna tadorna, shelduck 

 / Anas penelope, wigeon 

 \Anas americana, American wigeon 

 f Bucephala clangula, goldeneye 

 < Bucephala islandica, Barrow's 

 (^ goldeneye 

 Clangula hyemalis, long-tailed duck 

 Histrionicus histrionicus, harlequin- 

 duck 

 Somateria mollissima, eider 

 Somateria spectabilis, king-eider 

 Somateria stelleri, Steller's elder . . 

 Melanitta nigra, scoter 

 Melanittafusca, velvet-scoter 

 Melanitta perspicillata, surf-scoter 

 Camptorhynchus labradorius, Labrador 



duck 

 Mergus albellus, smew 

 ^ Mergus cucullatus, hooded 

 •{ merganser 

 [^Mergus merganser, goosander 

 *casual in Atlantic sector. 



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