B6 Dr. A, Hall on the Mammals and Birds 



F. Canadensis of Gmelin ! 



Aquila fulva of Meyer ! 



Aquila Canadensis. Linn. ! Baird ! 



v.s.p. Cere and feet yellow ; irides orange brown ; beak blue 

 at the base, brown at tip ; eggs 2 to 3 impure white, spotted red. 



Dorsal aspect. Crown of head and nape of neck with acumi- 

 nate feathers of a bright rufous orange tinge. The rest of this 

 aspect dark brown, more or less inclined to black, according to 

 the age of the bird. 



Ventral aspect. Dark brown verging to black ; tail dark grey, 

 banded irregularly with blackish brown, and terminated by a 

 broad band of the same colour; scapulars invariably brown. 

 " The young is uniformly of a ferruginous brown, and with the 

 feathers nearly all white towards the base ; tail white, with a broad 

 terminal brown and mottled band and no bars. (Nuttall.) 

 Length about 3 feet ; alar expanse 6 feet. Female about 6 inches 

 longer than the male. 



Sub genus Haliaetos. 



Sub. gen. char. Ridge of the beak convex and compressed ; 

 nostrils luneiform ; cere slightly hispid ; wings long ; tarsi fea- 

 tlfered on their upper half with short close set feathers, and scut- 

 ellated on the anterior inferior portion ; talons of equal length, 

 much bent and grooved internally. 



F. leucocephalus. Bald or White headed eagle. 

 Haliaetos leucocephalus. Linn. ! Baird ! 



v.s.p. ET V. Bill, cere, irides and tarsi, yellow. The young 

 bird with a black bill and pale brown irides. 



Ventral and dorsal aspects. Head, upper part of neck, tail 

 and coverts, pure white ; body and wings chocolate brown ; the 

 margins a shade or two lighter ; quill feathers brownish black 

 with paler shafts ; 4th primary longest ; 3rd subequal ; outer 

 webs of the primaries sinuate ; inner webs abruptl}'' emarginate 

 towards their ends ; tail round ; tarsi feathered for more than 

 half their length; the anterior naked part strongly scutellated ; hind 

 toe very long, and its talon longer and stouter than the others ; 

 middle toe longest, with the shortest talon and grooved on its inner 

 surface. Length 38 inches; alar expanse 61 inches. 



This bird does not assume its adult plumage until the 4th year, 

 during which time its plumage varies considerably according to its 

 age. Young bird. Feathers of the head and neck acuminate, inter- 



