( 23 ) 
The Pernis tribe has, with the weak beak of the Kite, a very 
peculiar character, which is, lhat the interval between the eye 
and the beak, which in all the others of the Genus Falco is naked, 
or only presenting a few hairs, is covered with very close feathers^ 
cut into scales. Their tarsi are half feathered in the upper pari, 
and reticulated ; they have an even tail, long wings, and the beak 
curved from its base^ like all those which follow. Falco Aplvorus^ 
(Honey Buzzard, Lath.) La Bondree Hupp6& deJava. 
The ButeoirihQ has the wings long, the tail eqnal, and the beak 
curved from its base, the interval between which and the eye is 
without feathers ; the feet strong. There are some with the tarsi 
feathered even to the toes [F.Pennatm) ; but the greater number 
have the tarsi naked and plated [F. BuUo. Backa, Vail.). They 
are distinguished from Eagleshj beak, curved from its base ; 
from AutourSy or Eagle Autours, by tarsi covered with strong 
feathers, and by their long wings, (i) 
The Circus tribe differs from the Buteo by more elevated tarsi,' 
and by a species of collar, formed on each side of the neck by 
the ends of the feathers which cover the ears ; fig. o/f. (2) Falco 
Pjgargus, (Ring-tailed Hen-harrier, Lath.) Falco Rufus (Harpy 
Falcon, Lath.) 
The Serpentarius, or Secretary, is an African Bird of Prey, 
with the tarsi at least double the length of ail the other Birds of 
this Family, which has made naturalists class it with the Grallrc ; 
but its thighs, entirely covered with feathers, its beak crook'd and 
cleft, its projeeting eyebrows, and all the details of its anaLomy,, 
place it in the present Order. Its tarsi are plated i its toes shorl 
in proportion; the orbit of its eye naked of feathers; it has a 
long stiff occipital crista, and the two middle pen feathers of its 
tail greatly surpass the others. It inhabits the sterile and opesi 
places in the neighbourhooxl of the Cape, where it pursues repliles 
on foot, and has nails worn by dint of walking; fig. 57, So. Its 
principal strength is in its feet. (3) 
(1) Beak weak, with a rounded tooth (not very apparent) ; the lieail 
large ; the body massive and heavy. Feet with short tarsi ; tbiglis 
breeched. "Wings of a moderate length, the four first remigesslopcdj, 
the first very short, the second and tliird less long than the fourlli-, 
which is the longest. They have a heavy flight, do not take their prej 
flying, but generally lay wait for it in ambush on a tree. Tern. 
(2) Beak small, superior mandible curved from its base, bearing a 
blunted tooth (not very apparent) at the root of the ]}eak, and some 
straight hairs which hide a part of the cera. Nostrils open. Feet witk 
very long and thin tarsi ; body slender \ tail long. Tern. 
(3) This Bird was introduced into the French West India Islands^ 
to destroy the numerous serpents. 
