482 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



HAUAEETUS ALBICILLA GROENLANDICA Brehm 



Greenland Sea Eagle 



Adult (sexes alike). — Similar to the adult of Haliaeetus albicilla 

 albicilla, but larger, and general coloration averaging slightly darker 

 and slightly more brownish, less grayish. 



Immature (sexes alike). — Similar to the corresponding plumage of 

 Haliaeetus albicilla albicilla but generally darker, and when mixed with 

 white on the upperparts, the white more pronounced by virtue of its 

 greater contrast with darker brown parts of the plumage. 



Juvenal (sexes alike). — Similar to that oi Haliaeetus albicilla albicilla, 

 but generally slightly darker.*^ 



Natal down. — Dusky grayish brown. 



Adult male.— Wing 624-652 (637.1); culmen from cere 51-60 (55.2); 

 tarsus 100-104 (101.8 mm.).*^ 



Adult female.— Wmg 660-717 (682.2); cuhnen from cere 58-65 

 (61.4) ; tarsus 104-107 (105.5 mm.),"^ 



Range. — Breeds in Greenland, where it is found chiefly on the 

 western coast. Possibly also, but rarely, on Baffin Island (Kingwah 

 Fjord, American Harbor, Pangnirtung) . Accidental off the coast of 

 Massachusetts (off Nantucket Light Ship, November 14, 1914).*^ 



Type locality. — Greenland. 



Vultur albicilla (not Falco albicilla Linnaeus, 1758, Vultiir albicilla Linnaeus, 

 1766) Fabricius, Fauna Groenl., 1780, 53. 



Fnlco albicilla Shaw, Gen. ZooL, vii, pt. 1,1809, 79, part (Greenland). 



Aquila albicilla Holb^ll, Naturhist. Tidsskr., iv, 1843, 384 (Greenland). 



Haliaetus albicilla Reinhardt, Journ. fiir Orn., 1854, 438 (Greenland); Ibis, 

 1861, 4 (s. Greenland, res. and very common; n. Greenland in summer). — 

 Cassin, Proc. Acad. Nat. Sci. Philadelphia, 1855, 283 (Greenland); in 

 Baird, Rep. Pacific R. R. Surv., ix, 1858, 43, part (Greenland).- — Brewer, 

 North Amer. Ool., i, 1857, 47, part (Greenland). — Baird, Cat. North Amer. 

 Birds, 1859, No. 42. — Elliot, New and Unfig. North Amer. Birds, ii, pt. 1, 

 1866, pi. 35, and text, part. — Ridgway, in Baird, Brewer, and Ridgway, 

 Hist. North Amer. Birds, iii, 1874, 324, part (Greenland).— Kumlien, U. S. 

 Nat. Mus. Bull. 15, 1S79, 82 (American Harbor; Kingwah Fjord, s. Baffinland; 

 breeding). — CouEs, Check List North Amer. Birds, ed. 2, 1882, No. 533; 

 Key North Amer. Birds, ed. 2, 1884, 555, part (Greenland). — Gurney, List 

 Diurn. Birds Prey, 1884, 58, part; Cat. Birds Prey, 1894, 23, part.— Cham- 



^2 The material seen of this form is insufficient to form the basis of any definite 

 descriptions; the facts presented above are largely taken from Schi0ler's work on 

 the birds of Denmark. 



^3 Fifteen specimens; data all from Schi0ler, Danmarks Fugle, iii, 1931, 83; 

 none seen by the present author. 



" Eleven specimens; data all from Schi0ler, Danmarks Fugle, iii, 1931, 83. 

 Only one bird, unscxed, but i^robably a female, seen by the present author: wing 

 660, tail 310, culmen from cere 65; tarsus 110; middle toe without claw 80 mm. 



*^ There is a bare possibility that this Nantucket record may refer to the 

 typical race, Haliaeetus albicilla albicilla, which breeds as far west as Iceland. 



