146 MR. R. B. SHARPE ON THE BIRDS OF ANGOLA. [Mar. 10, 
PsITTACULA ROSEICOLLIS. 
Psittacula roseicollis (Vieill.) ; Mont. P. Z.S. 1865, p. 94; Finsch, 
Papag. i. p. 640. 
Agapornis roseicollis, Boc. Jorn. Acad. Lisb. i. p. 336. 
Male. October 30, 1868. Eye red; beak pale green; feet pale 
lilac-colour. 
GyPOHIERAX ANGOLENSIS. 
Gypohierax angolensis (Gm.) ; Hartl. Orn. Westafr. p. 1. 
Female. December 10th, 1868. Eye yellow; bill very pale 
green; feet greyish. 
Knowing that Mr. J. G. Keulemans had observed this bird during 
his residence in the Cape-Verd Islands, I applied to him for a 
note on its habits; and I have much pleasure in subjoining the de- 
tails which he kindly forwarded to me. 
«This is one of the most abundant birds of prey in the Cape- 
Verd Islands. It is chiefly seen in those islands where there is but 
little vegetation, and seems to prefer rocky ground and bare moun- 
tains for its habitation. These birds are always found in company, 
groups of six to fifteen in number being ordinarily seen together. 
From daybreak to sunset, troups are seen flying at different elevations, 
circling round and round for hours without moving their wings. 
Their flight is Vulture-like ; and I always observed that when five or 
more individuals were circling in the air, another body was seen flying 
about a hundred feet above them; still higher another flock was 
observed, and so on until the highest flocks were but faint white 
specks in the distance. When on the ground they walk, but when 
in ahurry hop like a Magpie. They sometimes sit, half sleeping, on 
a bare rock or on the ground, but on the least alarm they fly up 
suddenly and go a long way before they settle. 
«The continual persecution and destruction of these birds by the 
inhabitants has made them exceedingly shy and suspicious, so that 
it is very difficult to approach them ; early in the morning, however, 
I sometimes managed to get near them. The best way to shoot 
them is when they fly near the ground, which they sometimes do 
when in pursuit of rats or mice. The sexes seem to be alike in 
coloration ; but I believe the females are larger than the males, as I 
always observed some little difference in the size of the birds. 
“Young birds are brown, some of them irregularly spotted with 
white, probably when moulting or changing their plumage. I once 
received a young bird in the down; it was of a dirty white colour, 
but the bill, legs, and iris were like the old birds. In the adult the 
colour of the bill is bluish, with a yellowish-pink cere and nostrils ; 
lees dirty pink and irides pure white. On one of the rocks to the 
north of the island of St. Vincent there has been a nest for several 
years; this rock is nearly 80 feet high, and when seen from a dis- 
tance it has the appearance of a man sitting, whence it is called by 
the inhabitants ‘ John Look-out’ ! . 
‘Qn John’s Head is the nest of Gypohierax angolensis ; and this is 
