The dimensions of this desert-hawk do not differ widely from those of the peregrine, but the feet are much smaller, and the tail longer. The feathers are of an inferior quality, and the light colour of the head prevents all risk of confusion. The wings are slightly longer and heavier. Young birds have the whole back up to the nape of the neck and down to the tail coverts dark brown, each feather tipped with a lighter and more rufous brown. Wing and tail feathers darker brown, narrowly tipped with rufous buff. The deck feathers are plain, but the others are barred with lighter brown on the upper surface, and with dull brownish grey bands of two shades underneath. The crown of the head is light greyish buff, with narrow streaks of light brown. The lower plumage is more or less dull white, very variously marked in different individuals, but generally with longitudinal splashes of more or less dark brown. The change to the adult plumage is not very marked. The breast markings do not change to transverse bars; but some old birds have the brown markings so arranged as to appear like irregular bars. These markings, however, generally become very sparse, and often disappear entirely on the throat and upper breast. The upper plumage alters to a slatey brownish grey, most of the feathers being barred with a darker brown, and still tipped with a rufous line. The cere and feet change from a bluish to a yellowish grey. The lanner is common in North Africa, as well as in Central and Southern Asia, and is very frequently trained and flown in all these parts of the world. It was also formerly very largely imported into England, and used chiefly for game-hawking. It enjoys, nevertheless, anything but a good character. The old English writers describe it as "slothful and hard mettled," and of an "ungrateful disposition," while the French characterise it as _vilain_ and _rebelle_. The Indian and Afghan falconers get it, as well as the saker, into condition by frequent physicking; and the list of drugs formerly used for it in England is of portentous length. In modern times the dosing of this as well as other hawks is imperfectly understood by European falconers; and the lanner is consequently in most cases a disappointing bird. When thrown off, she flies in a heavy style, and only after considerable delay will begin to mount. Very often, too, she will not mount at all, but go to perch on a tree, or even on the ground. She is apt to rake away and check at pigeons, plovers, and what not, and to be dull and obstinately slow at coming to the lure. To ensure obedience she must be fed a good deal upon washed meat, and that in moderate quantities, her appetite, like that of all the desert-falcons, being apt to grow slack on the least overfeeding. The lanner is very partial to mice, and in the wild state appears to devour lizards and other reptiles. She is not, therefore, at all particular as to diet, and may be regaled with coarser food than the nobler falcons.