70 
FALCO PENKSYLVANICUS. 
chill, wliite; brefist the same, streaked with hron'O’ 
bars on the tail rather narrower, but in tint and uumbef 
tile same ; belly and vent, white ; feet and shins exactly 
as ill the female; the toes have the same peiidulow® 
lobes which mark those of the female ; the wings barre** 
with black, very noticeable on the lower side. 
Since writing the above, I have shot another sp<!' 
cimen of this hawk, coiresponding in almost every 
particular with the male last mentioned; and whieij 
on dissection also proves to be a male. This last ha® 
within the grasp of his sharp taloas a small lizard, 
killed, on which he ivas about to feed. How he cofl' 
trived to get possession of it appeared to me matter ef 
surprise, as lightning itself seems scai-cely more fleet 
than this little reptile, which is known in miuiy parts et 
the country by the name of the swift. So rapid arc 
motions, that, in passing from one place to another, A 
vanishes, and actually eludes the eye in running a di^ 
tance of twelve or fifteen feet. It is frequently see® 
on fences that are covered ^vith gray moss and I'iche"’ 
which in colour it very much resembles ; it seeks .shelter 
in hollow trees, and also in the ground about thei*^ 
decayed roots. They are most numerous in hilly ])art* 
of the country, particularly on the declivities of th^ 
Blue Mountain, among the crevices of rocks and stonc^' 
When they are disposed to run, it is almost impossibk 
to shoot them, as they disappear' at the first touch 
the trig'g'er. 
14 . FALCO rEKKSrLrAXICVS, * WILSOX. 
SLATE COLOURED HAWK OLD BIRD. 
WILSOX, PLATE XLVI. piQ. i. 
Tins elegant and spirited little hawk is a native of 
Pennsylvania, and of the Atlantic states generally ; *1’'“ 
This bird is the adult of the/afco velox. 
