° 1916 J T)ixo:s, Migration of the Yellow-billed Loon. 371 



nest of this species, but none of the nine males and five females 

 taken between June 3 and July 16 showed, upon dissection, any 

 signs of breeding. (See Brooks, Bull. Mus. Comp. Zool., vol. 

 LIX, 1915, p. 368.) 



Doctor R. M. Anderson, leader of the Southern Division of 

 the Canadian Arctic Expedition, in discussing this problem with 

 me in the winter of 1913, assured me that the four seasons he had 

 spent between Point Barrow and the mouth of the Coppermine 

 River had been equally barren as regards definite breeding records 

 of this species. In Stefansson's 'My Life with the Eskimo' 

 Macmillan Co., New York, 1913, p. 456) Anderson says: "The 

 Yellow-billed Loon is found in most places on the Arctic coast in 

 summer, from northwestern Alaska to Coronation Gulf but does 

 not seem to be ^•er^,• common anywhere .... I have ne\-er been able 

 to find a nest of this bird or hear of any white man or native in 

 the North who has ever done so. The Common Loon or Great 

 Northern Diver occasionally straggles to the Arctic Coast, both in 

 Alaska and Canada." He mentions the occurrence of the Common 

 Loon at Flaxman Island, in Alaska, and Coronation Gulf on the 

 Canadian side. 



R. MacFarlane (Proc. U. S. National Museum, vol. 14, 1891, 

 p. 416) states, regarding the nesting of the Yellow-billed Loon: 

 " During the period of reproduction this loon abounds in consider- 

 able numbers in Franklin and Liverpool bays, where several 

 examples were shot. It is also sometimes met with on the larger 

 lakes of the interior. Although most anxious to possess eggs of 

 this species, we all failed to discover even one well-authenticated 

 nest, while it is possible that the two adamsii eggs referred to on 

 page 452, of vol. II, of the aforesaid Water Birds of North America, 

 may have belonged to the Great Northern Diver." 



Grinnell (Pacific Coast Avifauna, No. 1," 1900, p. 70) failed to 

 find the species at all during two summers spent at Kotzebue 

 Sound, where it had previously been supposed to be of common 

 occurrence. Altogether, careful analysis of the various Alaskan 

 records of the Yellow-billed Loon, do not disclose any definite or 

 authoritative information as to breeding habits or habitat. 



The results of om* observations of the migrations of the Yellow- 

 billed Loon do not accord in all particulars with the conclusions 



