Falco barbarus, Lin.
12 bis. :- Murray's Vertebrate Zoology of Sind, p. 68.
THE BARBARY FALCON.
Length, 14 ; wing, 10.8 ; tail, 5 ; tarsus, 1.6.
Length, 15.5 ; expanse, 36.4; wing, 11.4; tail, 6.4 ; tarsus, 1.8; bill from gape, 1.1.
The base of the beak is yellow, but the point is blue ; the cere and feet beautiful yellow, and the orbital skin orange.
The forehead presents a mixture of rufous and dull white. This part of the head is encircled by a black (or dark slaty) horse-shoe-shaped band, of which the lateral branches pass over the eyes, their extreme points joining in front of the eyes, the moustachial stripes which extend along the sides of the neck; the occiput and nape are covered by a rufous half-collar marked with three black spots, of which the centre one forms a band on the nape; the back and wings are a light bluish-grey, with large spots and irregular bars of bluish-black; the tail, which is a lighter grey than the back, is barred transversely with black bands, very narrow towards the bases of the feathers, but widening gradually towards their ends, the tips of which are white; the chest is pure isabeline ; the flanks, vent, and abdomen of the same color, but the feathers bear very narrow longitudinal striae and little triangular black spots.
This Falcon only occurs as a rare visitant, Sind being the only part of the region with which I am dealing, in which it has occurred.