PEREGRINE FALCON. Crass Il. 
178 
48. Pere- Belon av. 116. Ditto. Br. Zool. Tab. A*. 5. 
- GRiNE. Falco peregrinusniger. d/dr. Sparviere pellegrino femmina. 
av. 1. 239. Lorenzi av. Tab. 24. 
Blue backed falcon. Chari. Le Faucon pelerin. Brifon av. 
Ex..73; ~ 4341. Aif. D? Oys. I. 249. 
DescrRIP. 
N fize equal to the moor-buzzard: the bill 
ftrong, fhort, and very much hooked, armed 
near the end of the upper mandible with a very 
fharp procefs : blue at the bafe, black at the point: 
the irides dufky. 
The feathers on the forehead whitifh : the crown 
of the head black mixed with blue: the hind part 
of the neck black : the back, fcapulars, and coverts 
of the wings, elegantly barred with deep blue and 
black. The quil feathers dufky, marked with el- 
liptical white fpots placed tranfverfe: the inner co- 
verts croffed with black and white bars: the throat 
white: the fore part of the neck, and upper part 
of the breaft white flightly tinged with yellow, the 
laft marked with a few {mall dufky lines pointing 
downwards. The reft of the breaft, the belly, 
thighs and vent feathers, white inclining to grey, 
and crofied with dufky {trokes pointed in their 
middle. The tail confifts of feathers of equal length, 
finely and frequently barred with blue and black. 
The legs fhort and yellow: the toes very long, 
This fpecies feems to vary: we have feen one 
that 
