The black shaheen is docile, and more easily reclaimed than the peregrine; and is a great favourite with some of the Indian falconers, although the many distinguished Europeans who have flown hawks in that country express themselves less satisfied, and rather doubt the courage of peregrinator in the field. The quarry is the same as that of the peregrine, but it is only the strongest individuals which can be expected to cope with such heavy birds as the latter can tackle. Of the rapidity of its flight there can be no doubt; but Colonel Delmé Radcliffe says that it is inferior to the peregrine in "ringing" flights. Red-naped Shaheen (_Falco babylonicus_) Female--Length, about 17-1/4 inches; wing, 13; tail, 7-1/4. Male--Length, 15-1/2 inches; wing, about 11-3/4; tail, 6-1/4. This is another very near relation of the peregrine, also a favourite with the Indian falconers, both native and European. It is slightly smaller than the black shaheen, from which, as well as from _F. peregrinus_, it is readily distinguished by the reddish chestnut colour of the back of the head. The foot is smaller proportionately than that of the peregrine, and shaped rather more like that of the desert falcons. It is easily caught and reclaimed, and is said to develop a sort of affection for its trainer. When trained it is a most useful servant, and will fly with readiness and success at almost any of the innumerable Indian birds which are anywhere nearly of its own size. It excels particularly in the flight at wild ducks; and a specimen which was brought to England not many years ago proved a first-rate game-hawk. Latham asserts that it can be flown successfully at wild geese, but should be followed closely by well-mounted men, who should dismount quickly and secure the quarry, which may otherwise severely damage the hawk with its long and strong wings. He appears to have known a tiercel which flew rooks, and seldom missed as much as one in ten flights. It is a better moulter than the peregrine, and can sometimes be fully moulted by August. Barbary Falcon (_Falco barbarus_) Female--Length, about 13-1/2 inches; wing, 11-1/2; tail, 5-1/2. Male--Length, about 12-3/4 inches; wing, 10-3/4; tail, 5.3.