86 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



breast buffy or dull buffj^ whitish, streaked with dusky; otherwise 

 much like adults, but wing-bands and edgings dull buffy, and back and 

 scapulars browner. 



[Young birds in first winter are like adults, but with upper parts 

 browner, and with head, etc. (whole anterior under parts in females), 

 more strongly tinged or suffused with buff.] 



Adult male.— Length (skins), 109.47-135.13 (123.44); wing, 70.61- 

 76.45 (74.93); tail, 48.51-58.17 (54.10); exposed culmen, 7.87-9.65 

 (8.89); depth of bill at base, 5.33-7.11 (6.10); tarsus, 13.46-15.76 

 (14.73); middle toe, 7.62-9.65 (8.64).' 



Adult female.— Length (skins), 108.97-138.18 (122.68); wing, 70.10- 

 76.20 (73.91); tail, 50.55-58.42 (53.85); exposed culmen, 7.62-9,65 

 (8.38); depth of billatbase, 5.59-6.86 (6.10); tarsus, 13.97-15.49 (14.73); 

 middle toe, 7.62-9.14 (8.38).' 



More northern portions of northern hemisphere, the northern limit 

 of its breeding range inosculating with the southern portion of the 

 breeding range of A. Juyrneniannii exilipes (Ungava to western Alaska); 

 breeding southward to islands in Gulf of St. Lawrence;' in winter 

 south to more northern United States generally, iri-egularly and more 

 rarely to Virginia (Alexandria Co.), northern Alabama (Stevenson), 

 southern Ohio (Hamilton Co.), southern Indiana (Franklin, Decatur, 



' Forty-six specimens. 



^ Thirty-four specimens. 



Specimens from Europe and northeastern Asia average a littl ; larger than those 

 from North America, although the difference is slight and with more nearly equal 

 series, perhaps even less than that indicated by the following averages: 



Locality. 



Wing. 



Tail. 



Ex- 

 posed 

 culmen. 



Depth 

 o£ bill 

 at base. 



Tarsus. 



Middle 

 toe. 



MALES. 



Sixteen adultmales from northeastern North Amer- 

 ica 



Sixteen adult males from northwestern North Amer- 

 ica 



Eleven adult males from northeastern Asia 



Three adult males from Europe 



FEMALES. 



Fifteen adult females from northeastern North 

 America 



Six adult females from northwestern North America 



Eight adult females from northeastern Asia 



Five adult females from Europe 



73.66 



74.42 

 74.68 

 75.95 



72.14 

 71.63 

 73.15 

 73.15 



54.36 

 54.86 

 53.85 



53.69 

 53.59 

 54.10 

 64.10 



9.14 



8.89 

 8.38 

 8.64 



5.84 



«.35 

 6.10 

 6.10 



6.84 

 6.84 

 6.35 

 6.60 



14.73 



14.73 

 14.99 

 14,99 



14.73 

 14.99 

 14.73 

 14.73 



8.64 

 8.64 



8.38 

 8.64 

 8.64 

 8.38 



The series of European specimens ia much too small to afford satisfactory compar- 

 ison with North American birds. They show certain differences of coloration, which 

 may or may not prove to be constant, and comparison with larger series is therefore 

 very desirable. 



Said to breed in Nova Scotia and New Brunswick; also, according to Hatch (Birds 

 of Minnesota, p. 299), in Vermont and northeastern Minnesota. 



