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131. Haliseetus leucocephalus alascanus. Northern Bald Eagle. 
Migrant and rare winter resident, October 24 to April 6; young birds are 
not uncommon. A series of males is not available for measurement, but 
a series of females is given below. 
Sex 
Length 
Extent 
Wing 
Tail 
Cul- 
men 
Dep. 
of 
Bill 
Date 
Locality 
9 ad. 
X 34.75 
X 88.25 
X 24.50 
11.90 
2.80 
1.45 
Dec. 20, 1897 
Dunchurch, Ont. 
; 9 juv. 
X 34.25 
X 83. 
X 24. 
12.20 
2.45 
1.35 
Jan. — , 1890 
“ *« 
9 
X 33. 
X 84. 
X 23. 
— 
— 
— 
Mch. 23, 1893 
“ 
9 juv. 
— 
— 
25.75 
12.61 
2.55 
1.50 
Mch. — , 1 898 
I.oring, Ont. 
Measurements in inches; X from fresh birds. 
W9 /// 7 7i a rfTfCj Car? rz-, 
Haliseetus leucocephalus alascanus. Northern Bald Eagle.— 
A young female Bald Eagle, which was shot near Willimantic on October 
27, 1909, by Mr. G. H. Champlin, I obtained in the flesh through the kind- 
ness of Mr. C. R. Hooker. This bird (length, 36.19, extent, 89, wing, 
23.88, tail, 14.62, and exposed culmen, 2.52 inches) is so much nearer Bald 
Eagles from Alaska and British Columbia than to those from Virginia and 
Florida that I have referred it to alascanus. 
In this connection I wish to correct my record of a Gray Sea Eagle (Halicee- 
tus albicilla) from British Columbia (Auk, XXII, 1905, p. 79), as I now 
believe, after a study of about forty of the two species in the collections 
of the American Museum of Natural History, Dr. Dwight and myself, 
that that eagle is merely a young H. 1. alascanus in faded plumage. This 
Connecticut bird resembles even more closely young H. albicilla than does 
the British Columbia one, differing from it only in having the feathers of 
the nape and hind-neck longer and more lanceolate and the dark terminal 
markings of the scapulars and interscapulars more sharply defined. 
Auk 27.Oot«l01O p. 06 7 .- 463 . 
