The BARBARY PARTRIDGE (_Caccabis petrosa_), another member of the above group, is principally recognisable by the reddish brown band, spotted with white, that encircles its throat. The brow and sides of the head are light grey, shading to a blueish tint on the wing; the throat and eyebrows are whitish grey, the breast is of a blueish tint, shaded with grey, the thighs are striped yellowish brown and black; the rest of the under side is blueish grey. Some of the mantle-feathers are marked with reddish grey; the eye, beak, and foot of this bird are similarly coloured to those of its congeners. Its size is somewhat less than that of the species already described. The Barbary Partridge inhabits Greece, Sardinia, and occasionally the South of France; it is numerously met with in North-western Africa. Naturalists are by no means agreed as to the situations it prefers, some informing us that it selects lowland districts or rising ground in the vicinity of corn-fields, whilst on the contrary, Bolle, who is particularly accurate in his observations, states that in the Canary Islands it quite as frequently lives and breeds on rocky heights as in the valleys and open country. This savoury game we are told by the last-mentioned authority, swarms in such numbers on four of the Canary Islands as to be occasionally regarded as an intolerable nuisance. Salvadori informs us that the period of incubation commences early in February, and Bolle, that the eggs, from four to twelve in number, are hatched in twenty-two days. After the breeding season the pairs collect into parties, but if alarmed and separated appear to be at little trouble to seek for and rejoin their former companions. THE COMMON PARTRIDGE.