inhabiting the South of Africa. 235 
cere dusky greenish yellow; eyes dark brown; legs and toes 
yellowish white ; claws a dark horn color. 
Specimens of this hawk are not unfrequently found along 
the western coast, and I have also met with some about the 
Langekloof, at least three hundred miles to the eastward of 
Cape Town. In those situations it is often seen resorting, in 
the evenings, to the poplar and other trees in the vicinity of 
farm-houses, and upon such also it often buildsits nest. The 
latter is constructed externally of dry twigs, and within of 
hair and feathers, and in it are deposited from three to four 
eges, during the months of August or September. It preys 
on small birds, young hares, &c., and, when in search of such, 
or in defence of its young, it evinces a most amazing degree 
of ferocity and courage. 
FALCO PEREGRINOIDES. 
F. capite saturate ceseo, dorso subgriseo fasciis trans- 
versis nigris notato; macula nigra sub oculum; gula alba; 
pectore albo striis longitudinalibus nigris variegato ; abdomine 
griseo maculis stris et fasciis transversis nigris variegato ; 
tarsis et digitis flavis. 
Male.—Bill blackish at tip, orange yellow at base of lower 
mandible, and bluish green elsewhere; cere yellow; eyes 
dark brown ; front, crown, and nape dark grayish blue, with 
each feather marked by a narrow longitudinal black streak 
towards its centre; back of neck blackish, with the feathers 
tipt by dark bluish gray; interscapulars dark bluish gray, 
with transverse narrow dusky black bands; black light gray, 
with black bands; upper tail coverts the same; shoulders 
bluish gray, with more or less distinct dusky bands ; under 
each eye, and commencing at base of bill a black irregular 
blotch; side of the neck, chin, and throat white; breast 
white, or slightly timted with tawny, and variegated by fine 
black longitudinal streaks ; belly pale bluish gray, with small 
black spots, streaks, or transverse short bands; under tail 
coverts tawny white, with narrow black transverse bands. 
Primary and secondary wing coverts a deep tawny slate color, 
with narrow white tips; primary wing feathers blackish, 
with a tinge of hoary, which is most distinct upon the outer 
vanes; inner vanes with many transverse oviform white 
blotches; tips white; secondaries blackish, with the inner 
vanes mottled or distinctly banded with white; tips, anda 
little of edges of outer vanes, white: scapulars grayish, each 
with a narrow longitudinal black streak towards the middle, 
and with several blackish transverse bands crossing it. Tail 
bluish gray, with about ten transverse narrow black bands, 
and all the feathers broadly tipt with white ; the spaces be- 
[37] 
