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ber many dark-spotted juveniles were seen everywhere along the 

 Norwegian Coast. 



Larus liyperhoreiis Gunn. Along the coast of Norway the Glaucus 

 Gull was not observed in June, but arriving in Hammerfest on 

 Sept. 10, I saw some young specimens in the harbour. 



Rissa trklactijla tridactyla L. The Kittiwake, very common in the 

 open sea (I saw many specimens in the North Sea and in the Arctic 

 Ocean) does not occur along the Scandinavian Coast in summer. 

 Common Gulls, Herring-, Great and Lesser Black-backed Gulls are 

 plentiful here in summer, however. 



Stercorarius ixirasiticus (L.). The Arctic Skua was of common 

 occurrence along the Norwegian Coast in June, where I saw mainly 

 dark specimens. The white-bellied form was much rarer here. 



Alca torda L. As I have mentioned in my introduction, I did 

 not see large numbers of Razorbills along the Norwegian Coast, 

 except in the neighbourhood of their breeding colonies (as e. g. Fuglö, 

 north of Tromsö). 



Uria troille troille (L.). What is said of the Razorbill also holds good 

 for the Common Guillemot, but the latter is more numerous. In June 

 I saw many specimens in the neighbourhood of Lovunden, Thronen, 

 and Fuglö, north of Tromsö, where they breed in large quantities. 



Uria gnjUe grijlle (L.). The Black Guillemot is a common bird 

 along the entire Norwegian Coast. It never occurs in large troops, 

 but generally in numerous small parties or pairs. It was especially 

 plentiful between Bergen and Aalesund. 



Fratermla arctica arctica (L.). On the Norwegian Coast I have 

 seen much more Puffins than Razorbills and Guillemots, owing to 

 the fact that we passed some mountains, inhabited by large quan- 

 tities. Such a colony is to be found on Fuglö, south of Bodo, 

 where hundreds of birds flew to and fro on June 17. When the 

 steamer comes near a Puffin, it does not fly away, but tries 

 generally to escape by running and swimming; Guillemots mostly 

 dive at once. 



