776 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult male. —Length (skins), 353-394 (364); wing, 218-251 (239.6); 

 tail, 160-191.5 (176.2); culmen, from cere, 17-19.5 (18.4).« 



Adult female. —hength (skins), 350-383 (366); wing, 223-240 

 (232.9); tail, 172.5-182 (178.8); culmen, from cere, 18.5-20.5 (19.6).^ 



Northern North America; breeding in Hudsonian and Canadian 

 life-zones, northward to limit of trees in Alaska, Yukon, Mackenzie, 

 Keewatin, and Ungava, southward to Labrador (Hamilton Kiver; 

 Hamilton Inlet), Newfoundland (?), central Alberta, Montana (cas- 

 ually ?), and southern British Columbia; winters, regularly, southward 

 throughout Canadian Zone and northern portions of Transition Zone, 

 irregularly or casually southward into the Upper Austral Zone, as far 

 as Massachusetts (Framingham, January, 1860; Chatham, winter of 

 1883-84; Winchendon, 4 specimens, winters of 1886-87 and 1887-88; 

 Lincoln, February, 1907), Rhode Island, eastern Pennsylvania (near 

 Philadelphia), New Jersey, New York (Bay Ridge, Long Island; 

 Clark's MiUs, Oneida County, winter of 1885-86; Lewis County, 

 Oct. 24 and Nov. 16, 1897; Ogdensburg, St. Lawrence County; near 

 Holly, Orleans County), southern Ontario (Hamilton; Ottawa, Oct. 

 9, 1906), Ohio, southeastern Indiana (Franklin County, January, 

 1878) ?,^ Michigan (Port Huron, St. Clair County, Nov. 19, 1905), 

 southern Wisconsin (Racine), northern Illinois (Kane County, Sep- 

 tember, 1869), Minnesota, Missouri (Mount Carmel, Audrain County, 

 Dec. 26, 1884, Mar. 10, 1885, Jan. 28, 1886) %" Nebraska, and Wash- 

 ington (Bellingham Bay); accidental in Bermuda(?),*' and in British 

 Islands (several records). 



« Foiirteen specimens. 

 b Eight specimens. 



Locality. 



MALES. 



One adult male from northern Russia (S. u. ulula) 



One adult male from northeastern Siberia {S. u. pallasi) . . 



Nine adult males from Alaska 



One adult male from Ungava 



Two adult males from Newfoundland 



Two adult males from Alberta 



FEMALES. 



One adult female from Norway (S. u. ulula) 



One adult female from northeastern Siberia (S. m. -pallasi) 



Four adult females from Alaska (mainland) 



Two adult females from Kadiak Island, Alaska 



One adult female from Ungava 



One adult female from Labrador 



Culmen, 

 from 

 cere. 



18.5 



18 



18.1 



19.5 



18.2 



19.2 



18 



18.5 



19.5 



20 



20 



19 



c These records doubtful, especially the first and second. 



