EAGLES AND HAWKS. 35 



miglit suffice for a greater number of species ; but the 

 groups would be extensive were all the species that 

 occur in other countries to be added to ours. I here 

 present a short table of the genera and species, in which 

 I employ empirical characters, such as may enable a 

 person to discover the name of a particular bird that 

 he may chance to obtain. After this, he may peruse 

 its description as subsequently given. 



Genus I. HALIAETUS. SEA-EAGLE. 



Bill nearly as long as the head, very deep, and nar- 

 row, its upper outline nearly straight as far as the cur- 

 vature of the tip, the edge of the upper mandible with a 

 slight festoon; nostrils oblong, oblique; tarsi short, round- 

 ed, bare for two thirds, with about seven large scutella 

 or broad scales; claws large, flattish, and narrow be- 

 neath. Page 49. 



BILL OF HALIAETUS ALBICILLA. 



1. H. Albicilla. White-tailed Sea-Eagle. — Of the adult of 

 both sexes the plumage of the head and neck brownish- 

 grey^ the tail white. Of the young, the plumage pale 

 brown, with elongated spots of dark brown, the tail brown- 

 ish-black, irregularly variegated with white. Page 53. 



