162 
Aquiline, Eagles. 
These may be said to be marked by a very large 
size, a heavy form, long wings, very powerful and 
muscular feet, the tarsi proportionally short, but 
strong, and more or less plumed. The head is 
also frequently crested, beautifully so in some 
foreign birds, and exhibiting an approach to it in 
the lengthened feathers on the hind head of the 
Osprey, and m the lanceolate formed plumes of 
the Golden Eagle. The typical birds, or true 
eagles, are well exemplified by the beautiful Falco 
imperialis, Temnf. of Europe and Northern 
Africa; by the A. fucosa of New Holland, where 
the tail begins to vary in form, and is cuneated ; 
and by our own n.oble bird the Golden Eagle. 
We have only two British birds entering into the 
first or aquiline sub-family. The extent of their 
geographical range is, however, greater than that 
of the last. The Golden Eagle stretches over 
Europe, is mentioned by Dr Richardson as occur- 
ring among the Rocky Mountains, and affords the 
favourite war plumes for the natives. It is also 
found in Alpine India, specimens having been 
received from the Himalayan range. The Sea 
Eagle extends through Europe to Asia and Ame- 
rica. The Osprey is abundant in North America, 
