165 



Klaas Billen Bay (O.E.). Like the Guillemot they decrease strongly 

 in Icefjord in the course of August. In the last days of August 

 they had all disappeared. 



Fratercula arctica. Naumanni Norton, the Northern Puffin. 



Fratercula glacialis (Leach), Trevor Battye (1897), p. 599. 

 Mormon arcticus (L.), Kolthoff (1903), p. 87. 

 Fratercula arcticus glacialis Steph., Schalow (1904), p. 121. 

 Mormon arcticus glacialis Naum., le Roi (1911), p. 261. 

 Fratercula arctica glacialis Steph., Zedlitz (1911), p. 302. 



9, Icefjord near Cape Boheman, July 30, 1921. 



This Puffin, which is much larger than the European form — 

 especially bill, wing and tarsus are larger — is not so numerous 

 in Spitsbergen as Brünnich's Guillemot and Little Auk or even as 

 Mandt's Guillemot. Yet I met them in all parts of Icefjord, where 

 they are to be found especially in deep water (in the shallow sea 

 near Cape Boheman they did not come, contrary to the Black 

 Guillemots). 



In Spitsbergen they nest as a rule in rock-crevices, as I could 

 observe at the Anser Isles, where we (O.E.) caught a male, incubating 

 its single egg. So it is proved that the male (only?) breeds. Their 

 breeding quarters seem to vary much. Dietrich found them at the 

 Anser Isles in 1906, where le Roi did not find any in 1907 (le 

 Roi (1911), p. 265). This summer they were pretty common there, 

 breeding scattered along the precipitous N.E. coast of the largest isle. 



In the end of August after the breeding season they were numerous 

 everywhere in Icefjord ; so they leave for the open sea much later 

 than the Guillemots and Little Auks. 



The European form with small bill still breeds on Bearisle and 

 occurs very seldom in Spitsbergen. If it is a breeding bird here, is 

 not ascertained. 



According to le Roi (p. 266) the Puffin is shy and difficult to 

 shoot. Near Cape Boheman, where they were pretty numerous, this 

 was not the case, however, and we could easily obtain them. 



Lagopus mutus hyperboreus Sund., the Spitsbergen Ptarmigan. 



Lagopus hemileucurus Gould, Trevor Battye (1897), p. 587. 

 Lagopus hemileucurus Gould, Kolthoff (1903), p. 38. 

 Lagopus hyperboreus Sund., Schalow (1904), p. 215. 



