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„Ægvær"-proprietor. This hungry marauder wages endless war 

 with all other sea-fowl. The Terns, however, (St erna fluvial il is 

 and hirunclo), and Lams canus fiercely repel its predatory attacks, 

 and even Strepsilas interpres will muster up courage for a fight, 

 should it venture to encroach upon its territory. 



When three or four individuals of this species encounter one 

 another in the breeding-season, they will often perform a series of 

 graceful evolutions, one bird swiftly circling round the other, and 

 uttering as they descend with pendent unmoved wings, their harsh, 

 stridulous, and snuffling ciy: éau, éau. 



Lest r is cepphns, Briinn. (Buffanii, Boie). 

 In the province of Finmark, this species is most common in 

 i the interior tracts of East Finmark. It has been found breeding 

 up to Karasjok and Kautokeino, and probably frequents each of 

 the extensive marshes in that locality. 



A small colony is resident in the moss es of the Dovre, (Op- 

 dal), preying principally on Myodes lemmas. 



F ulm ar us glacial is, Lin. 



Frequents even in summer almost every locality on the co ast, 

 and the islands forming the outermost „Skjærgaard", and is regu- 

 larly observed off Fuglø by vessels leaving the port of Tromsø. 

 On some of the fisliing-grounds, at Storeggen for instance, off Aale- 

 sund, they sometimes occur in deuse flocks, large numbers being 

 oecasionally caught from the decks of vessels with baited fish-hooks. 

 These summer individuals are probably all immature birds. 



This species is not common on the shores of the south, visi- 

 ting only the extremities of the fjords: but two individuals have 

 been shot in the Christiania Fjord, the last early in January 1872. 



Procellaria pelagica, Lin. 

 Its occurrence north of Lofoten (69°) has not been sufneiently 

 authenticated. Mr. Barth thinks he observed a small fiock off the 

 coast of East Finmark, but the species has not been found there by 

 other naturalists. 



