178. F A I 
33. Falco Mogilnik, the Radian eagle. Cere yellow ; 
legs downy, with the body dufky-ferruginous ; back 
mixed with white. Two feet three inches long; feeds 
on mice and fmall birds. Bill, pupil, claws, and quill, 
feathers, black ; eyelids pale-blue ; irids pale ; tail equal ; 
tail-feathers black, with dufky-grey bands, tawny at the 
tips. Inhabits the deferts near the Tanais. 
34. Falco criftatqs, the ere fled eagle. Head crefted ; 
back, throat, and wings, black ; belly white ; tail with 
four parallel cinereous bands. Size of a Turkey ; lower 
ipandible flraight. 
35. Falco lagopus, the rough-legged eagle. Cere and 
downy legs-yellow ; body black (potted with white; 
tail-feathers white, towards the tip black. Tw.o feet two 
inches long. Head, neck, and bread, yellowilh-vvhite 
with oblong brown bands ; tail brown, the bafe and tip 
white; Inhabits Europe and North America. 
36. Falco Grcenlandica, the Greenland eagle. Cere 
and legs leadmolour ; body above brownifh, beneath 
whitifii with longitudinal brown (treaks. Crown brown, 
with irregular oblong white (pots ; front whitilh ; cheeks 
blackilh ; head on the hind-part and throat white ; 
bread and belly yeliowifh-white with longitudinal brown 
ftripes ; back dullcy tinged with blue, tire ends of the 
feathers fprinkled with a few white fpots ; wings beneath 
variegated black and white : tail above dufky, eroded 
with paler bars, underneath w.hitifh. Inhabits Green¬ 
land: of (mail lize ; lives on birds. 
37. Falco ferox, the fierce eagle. Cere green ; body 
above brown ; back, belly, and ta.il-cdV.erts fnowy, va¬ 
riegated with chednut fpots ; tail-feathers equal, brown, 
•with four paler bands. Bill leaden-black ; eyelids blue; 
irids yellow ; head and neck, ferruginous mixed, with 
v hi tilh ; quill-feathers twenty-fix, black, beneath white, 
towards the tips grey ; tail-feathers twelve, equal, be¬ 
neath white; claws flvarp. Inhabits Rufiia : more than 
two feet long ; very rapacious. 
38. Falco maritimus, the Javan eagle. Cere and legs 
yellow; body and tip of the tail white,; (hanks reddifii 
mixed with white. Bill yellow. Inhabits the fea coad 
of Jaya: four feet long ; feeds on .fifh and carrion. 
39. Falco /Egyptius, the Egyptian eagle. Cere and 
half downy legs yellow ; body above cinereous, beneath 
ferruginous ; wings above brown ; .tail forked, as long as 
the body, barred with brown. Bill yellow ; tail-feathers 
black towards the tip; wings underneath grey-brown; 
tail cinereous; claws black. Inhabits Egypt; a foot 
and half long. 
40. Falco Niloticns, the eagle of the Nile. Cere and 
legs yellow ; body above reddidi-brown with tranfverfe 
black rays ; tail forked, as long as the body ; wings va¬ 
riegated with brown, grey, white, and a reddifh hue. 
Added by Turton, from Sonnini Travels, i. 321.—Bill 
black, grey, towards the bafe.; irids hazel ; feathers of 
the head black in the middle, of tl\e lides of the head 
varied with grey, black, and red; throat grey ; upper 
part- of the bread: reddifh, with black longitudinal fpots ; 
rdf of the. body beneath grey, tinged with red; legs 
Ipotted with black. Inhabits Egypt: twelve inches long. 
41. Falco ftridens, the noify eagle. This fpecies, 
called by Vaillant le v'oeifer , is~a molt beautiful bird, dif- 
tinguifhed from the other eagles not only by a variety of 
colours, but by the elegance of its fhapeand make. The 
front of the body, and the tail, are white; the other 
parts are feddifh-br.own mingled with black. The fea¬ 
thers of the head, neck, and fcapuiars, which are white, 
(hew their brown edges; a few longitudinal blackilh fpots 
appear on tire bread. The reft of the plumage is ferru¬ 
ginous brown and black; the fmaller wing-coverts. are 
lighter, inclining to ruff-colour ; inthispar.t the.fcapuiars 
are mixed with black, which agreeably relieves the white 
that falls gracefully down upon the back. The wing- 
quills, the outer barbs marbled, white, and red ; the 
lower part of the back and upper tail-coverts are black 
mixed with dirty-white. The (kin is vifible between the 
beak and the eye, being furniftied only with a few fcat- 
c o. 
tered hairs; it is of a yellowiffi colour, as well as the 
bafe of the bill, the feet, and the toes. The iris is red- 
di(b-brown. The feathers of the thighs fall down half 
an inch upon the legs in front; the nails and bill are of a 
blue horn-colour. The crop is covered with a long tufted 
down. The tail is fomewhat rounded ; that is, the outer 
quills are the fhorteff, the reft are longer in fuccelfion to 
the two middle ones, which are the longed, and are of 
equal length. The female has much lefs black fn her 
plumage ; the white is not fo pure ; the red not fo dark. 
She is larger than the male. The wings, when at reft, 
reach to the end of the tail ; when extended, they mea- 
fure eight feet from tip to tip. The young one has cine¬ 
reous grey in the place of white; at the fecond moult, 
the grey remains intermixed with the white ; in the third 
year the bird receives its permanent colours, and the tail 
is then entirely white. 
This fpecies is found on the fea-fliore, and at the 
mouths of great rivers all along the eaft and weft coaft of 
Africa, at lead as far as Vaillant travelled in thofe direc¬ 
tions ; he never obferved it in the interior, becaufe fifh 
being its principal food, it frequents thofe places only 
which are vifited by the tide ; for, 1110ft of the rivers in 
Africa being merely torrents milling from the mountains,, 
fifh is as fcarce there as it is plenty in thofe parts border¬ 
ing on the fea; yet even in the interior .they were feen 
along the whole courfe of the Orange river and the Rio 
Grande, becaufe thefe dreams are furnifhed with fifh in 
every part. This bird, like the ofprey and the bald- 
buzzard, darts rapidly from a great height into the water 
upon a fifh ; fometiines he fplafhes into the waves with a,. 
violent noif'e, plunges his whole body under water, and 
rife.s with a large fifh in his claws ; on the; neighbouring 
rpeks he devours his prey, or on the trunk of a tree un¬ 
rooted.and thrown up by the waves; and he generally re¬ 
turns to the fame place for the fame purpofe, as may be 
obferved by the heaps of heads and bones of fifties. 
Among thefe, the bones of gazelles are fometimes feen, 
fo that beads make part of its prey, but not birds : a large 
kind of lizard, very common in the rivers of Africa, 
forms an occafional. variety in its food. 
The name naturally arifes from the cuflora thefe birds 
have of uttering loud cries with various inflexions of 
voice ; and they reply to each other at a great diftance, 
perched on rocks hanging over the fea, or on a broken 
tree on the fands. During, thefe noify communications, 
they are feen to make violent contortions of the headand 
neck, doubtlefs from the great exertion required for fuch 
a loud converfation. They are eafily difeovered by this 
rough mufic.; bur it is very difficult to approach one fo 
as to take aim. Vaillant, determined to fpare no pains 
to poflefs fuch a rare bird, dug a hole, over which he 
laid a.mat, and covered it partly with earth : there he lay 
three days in ambufh in fight of a ftump of a tree, w-here 
a couple of thefe birds ufually came to devour their 
prey ; but they did not return till the mould had no 
longer a freflv appearance, but looked fun-burnt like the 
reft : tit length lie (hot the female, but (he flew acrofs the 
(Xuuerboom river, and Vaillant was nigh being drowned 
in following her at high water, as may be feen at large in 
his Travels in Africa. The male was killed feme "days 
after, in learch of his female, near the encampment, 
while feeding on the remains of a buffalo which Vaillant 
had thrown out to attract carnivorous birds. 
The noify eagle is therefore very fhy ; he takes flight 
as Coon as he perceives the hunter at a confiderable dif- 
tance. He riles to a prodigious height ; and his flight is 
extremely graceful. While.in the air, he frequenrly ut¬ 
ters the. notes or Jyllables ca-koti-cqn-cou. Thefe are ut¬ 
tered flowly, the fecond fome tones higher than the firfr, 
and the two laft fucceflively one tone lower. VaiLlant 
exprelfes the fong in mufical notes, thus : 
It would be a valuable acquisition could we have the 
notes 
