91 



Rather larger ; wing $ 25.50 ; cJ25in. 

 229a. Haliceetus leucocephalus alascanus C. H. Town- 

 send, Proc. Biol. Soc. Wash., xi., p. 145 (1897). 

 [Unalaska, type in U.S. Nat. Mus.] 

 Alaskan Bald Eagle. 



Length ad. 41, wing 24.4 in. ; tail with 14 

 feathers ; general plumage brown, with ashy 

 streaks to head, neck and under parts, and 

 whitish tips to feathers of upper parts ; wing- 

 coverts, rump, upper and under tail-ooverts, 

 tail and thighs white ; immature has these 

 latter parts only mottled with white. 

 230. Haliceetus pelagicus pelagicus (Pall.), Zoogr. 

 Rosso -Asiat., i., p. 343 (1827). [Islands between 

 Kamtschatka and America : Bering Isl\ 

 Steller's Sea -Eagle. 



Wing cJ 21.62 ; differs from H. pelagicus in 

 the great height of its bill and also in having 

 only the tail and upper and under tail- 

 coverts pure white ; rest of plumage blackish 

 brown, the feathers on crown and neck with a 

 fine central greyish line ; bill and feet orange- 

 yellow. 

 230a. Haliceetus pelagicus niger Heude, Naturaliste, 

 1887, p. 95. [Korea.] [=H. branickii, Tacz.] 

 Black Sea -Eagle. 



Wing (J 24.4 in. ; tail much longer (14.4 in.) 

 and regularly graduated ; 5 primaries sharply 

 emarginated, but distance between tips of 

 innermost secondaries and primaries large, 

 5.5. in. as against 2.5 in. in H. p. niger. 

 230b. Haliceetus pelagicus macrurus (Menzb.), Ball. 

 B.O.C., xi., p. 4 (1900). [Yakutsk, E. Siberia.] 

 Long -tailed Sea-Eagle. 



Smaller; length $ 28 ; wing 23.2 in., (J wing 

 22.3 in. ; entire under parts, as well as head 

 and neck, white ; above ashy grey, shaded 

 with brownish ; primaries blackish ; tail 

 black for basal two -thirds, terminal third 

 white. Immature : whole plumage brown 



N.W. Alaska, 

 Bering I., 

 N.W. Mac- 

 kenzie & 

 N. Ungava, 

 S. to Brit. 

 Columbia & 

 Gt. Lakes. 



N.E. Siberia, 

 Kamtschatka, 

 Saldialin ; in 

 winter S. to 

 Japan. 



Korea, 

 Ussuri. 



Siberia. 



