Mr. R. B. Sharpe’s Catalogue of Accipitres. 473 
barred with white on the outer web.” i Mr. Ridgway, in his 
f Studies of the American Falconidse/ to which I have already 
referred, describes this species (at p. 176) as having the 
“pileum and nape sometimes streaked” with black, and 
sometimes “ immaculate.” A specimen from Cayenne, in the 
collection of Messrs. Salvin and Godman, agrees with Mr. 
Sharpens description in this respect, but also has the white 
feathers of the hinder head conspicuously variegated by broad 
slaty-black shaft-marks. Of two specimens in the Norwich 
Museum, one closely resembles the Cayenne example just 
mentioned; but the other has the shaft-marks on the crown of 
the head narrower and less conspicuous, as though they were 
in process of gradually disappearing: this specimen is from 
Quito, and is the most westerly example of this species which 
has come under my notice; the locality of the other specimen 
at Norwich is doubtful. 
Mr. Ridgway thus describes the markings on the tail of 
this Buzzard :—“ Tail white at the base and end, the middle 
portion black; this black band of variable width, sometimes 
occupying the greater portion of the tail, but in a specimen 
from Bogota restricted to a subterminal band about 2"50 
inches wide.” Mr. Sharpens description appears to have been 
taken from a specimen in which the tail resembles the bird 
described by Mr. Ridgway from Bogota; but Messrs. Salvin 
and Godman^s specimen from Cayenne and the two in the 
Norwich Museum have the markings on the tail in accordance 
with the first description supplied by Mr. Ridgway. 
The following is a detailed description of these markings 
in the Cayenne specimen above referred to :—All the rec- 
trices, save the two outermost pairs, are entirely black, ex¬ 
cept a narrow white basal band, which is hidden by the upper 
tail-coverts, and excepting also a white terminal band, extend¬ 
ing across all the rectrices, and about 1*3 inch in breadth; 
on the outer pair the basal white band is visible for 1*5 inch 
below the tip of the upper tail-coverts, as it is also on the 
next pair; but on these it is imperfect, being intersected by 
black barring on the outer web; the under surface of the 
tail is white, with a central transverse black band 2 ‘5 inches 
in width. 
