The terrestrial mammals and birds of North-East Greenland. 159 



Eggs. 



June 30th 1907. 



The ship's-harbour. 



Not incubated. 



Length Breadth 



mm. mm. 



1 33 22 



2 33 22 



3 33 21 



4 32 22 



Iceland Gull, Laras leiicopterus Faber. 



The great likeness of this gull to the nearly related Glaucous 

 Gull made it in many cases impossible for me to distinguish be- 

 tween the two species. 



In those places inland where L. glaiiciis decidedly occurred 

 most commonly I have but a few times seen Gulls w'hich I could 

 note down with certainty as L. leucoptenis. 



August 17*'^ 1906 two Gulls appeared in the ship's-harbour and 

 circled around the ship for some minutes. 



As the birds were of comparatively small size and their wings 

 were long I took them to be L. leucopterus. Both the Gulls were 

 in full summer plumage. 



A small Gull — an old bird in summer plumage — stayed in 

 the days from September 25'^^ to 30'^ of the same year in the ship's- 

 harbour and around the Vestre Havnenæs lying near the harbour. 



The Gull became gradually less shy as the bay became covered 

 with new^ ice; at last it seemed to suffer much from cold and want 

 of food. While it was lying on the ice forced up into the firth, I 

 could — within a distance of a few meters — precisely observe 

 every detail of the bird, the bill of which was more slender, than 

 I have observed it in any Glaucous Gull. When the wings were 

 kept close to the body, the reached a good deal over the tip of the 

 tail, and the size of the bird was much smaller, than I ever saw it 

 in a Glaucous Gull. Wounded by a shot the Gull disappeared to- 

 wards the pack-ice. 



June 20*h 1907 I observed at Stormkap 5 old Gulls in full plu- 

 mage migrating close over my tent; these birds also I put down as 

 L. leucopterus. 



I hardly believe, that any nesting-place exists on the tracts ex- 

 plored by the expedition. Immature birds were not observed here. 

 During the navigation through the pack-ice on the voj'age outwards 



