472 Mr. J. H. Gurney's Notes on 
tipped with white, and irregularly spotted or barred with the 
same." These white bars and tips become less numerous as 
the bird advances in age; and the whole appearance of the 
mantle in consequence becomes more uniform and more cha¬ 
racterized by an unbroken slate-colour. 
The authors of f Exotic Ornithology/ who figure at pi. 49 
of that work a specimen of this Buzzard, observe that “ in 
very old birds it is possible that the white edgings to the fea¬ 
thers of the back and wings, which are more apparent in 
some specimens than in others, may wholly disappear." Such 
is, in great measure, the case with the most adult example 
in the Norwich Museum, in which the white edgings have 
almost entirely disappeared from the mantle, and, with the 
exception of about four of the scapular feathers, only remain 
on the secondaries and tertials. 
It should, however, be observed that the small coverts along 
the ridge of the wing, between the body and the carpal joint, 
which in the immature plumage are slaty black edged with 
white, are in the adult pure white for about half an inch in 
breadth from the ridge, where they merge into slaty black. 
Mr. Sharpe describes the head and neck as “ pure white ;" 
but in the two adult specimens in the Norwich Museum the 
crown of the head and back of the neck show a very fine 
blackish shaft-mark on each feather; in a younger bird in 
the same collection these marks are broader, especially on 
the nape, and for the most part of a browner hue. 
The next species which I have to notice is L. albicollis, a 
Buzzard nearly allied to L. palliata , but readily distinguish¬ 
able, in addition to other characteristics, by the pure white 
of its lower back, rump, and upper tail-coverts. 
This species, which is figured by Temminck in PI. Col. 
pi. 9, under the name of Falco pcecilonotus , is there repre¬ 
sented with the head and interscapular region of a pure white, 
with the exception of a black supercilium; but Mr. Sharpe, 
probably taking his description from a younger bird, speaks 
of the head (except the sides of the face) as white streaked 
with black," and of the interscapulary feathers as black 
much varied with white bases and margins, sometimes also 
