Birds of Prey. 
ii 7 
that species by its red tail, 
which has one sub-terminal 
bar of black on it. There is 
nothing in its habits different 
from those of other species of 
Buzzards. 
THE RED-SHOULDERED 
BUZZARD. 
(Butco lineatus.) 
This is another North- 
American species which is 
supposed to have occurred 
once within our limits, a 
specimen having been said 
to have occurred in Inverness-shire in 1863. Its home is in North America, and 
even the single occurrence in Great Britain is considered to be doubtfully authentic. 
The principal difference between a Buzzard and an Eagle 
exists in the different configuration of the hinder aspect of 
the tarsus. In a Buzzard this is transversely scaled, while 
in an Eagle it is reticulated or covered with a 1 net ’-like 
pattern of scales. In the case of some of the true Eagles and 
of the Rough-legged Buzzard-Eagle, this character is difficult to distinguish when 
the entire tarsus is clothed with feathers. 
The present species is intermediate between the true Buzzards and the true 
Eagles, being much smaller than any of the latter and differing from them in the 
shape of the nostrils. The Buzzard- 
Eagle has been supposed to breed 
in Scotland, but no satisfactory 
evidence is, as yet, forthcoming, 
and the species is generally known 
as an autumn visitor on migration 
to all three Kingdoms, but 
especially to Scotland. On the 
Continent it breeds in the north, 
in Scandinavia and Northern 
Russia, as far as the valley of 
the Lena. In many of its ways 
the present species is said to re- 
semble the Eagles, frequenting 
the open country, and feeding on 
The Rough-legged Buzzard-Eagle. 
THE 
ROUGH-LEGGED 
BUZZARD-EAGLE. 
( Archibuteo lagopus.) 
The Red-shouldered Buzzard. 
