INTRODUCTION. 
103 
popular, but of some permanent value and of some 
scientific authority. We deem it incumbent to 
state the reasons that have guided us in refraining, 
for the present, from including in our list all the 
birds supposed to inhabit Senegal ; and as none of 
the vulture family have yet reached us from that 
country, we at once proceed to the 
FALCONID7E OR FALCON FAMILY, 
confining our attention to those species only of which 
specimens are now before us. They all belong to 
the two most typical or perfect divisions of the 
family, namely, the noble falcons ( Falconince J, and 
the hawks ( Accipitrincn ). The first we shall notice 
is one of the most rare and interesting birds in the 
whole collection, and which appears to be the type of 
a distinct sub-genus of true falcons ; and we- there* 
fore characterise it as the 
