The EARED STONE CHAT (_Saxicola aurita_) and the BLACK-THROATED STONE CHAT (_Saxicola stapazina_). The first of these is six inches long, and ten inches and a half broad; the wing measures three inches and a third, and the tail two inches and a half. The plumage on the upper part of the body is whitish grey; that of the under side greyish reddish white; a narrow line that passes from the beak to the eyes, an oval patch on the cheek, the wings, central tail-feathers, and the tips of those at the exterior are black; the colours in the plumage of the female are paler and redder than those of her mate. The Black-throated Stone Chat is rust-red on the upper portions of the body, breast, and belly; the throat and wings are black, the feathers of the single wing-covers edged with rust-red; the exterior tail-feathers are white, tipped with black, and those in the centre entirely black. The young of both species are greyish yellow on the head, nape, and back, every feather being lightly edged with grey at the tip, and streaked with white on the shaft. The under side is dirty white, with a greyish shade upon the breast; the quills and tail-feathers are pale black; the feathers of the wing-covers are bordered with yellowish white. Though they by no means avoid fruitful tracts or cultivated districts, these birds very decidedly prefer to take up their abode in mountains or stony regions, and are for this reason particularly numerous in Sweden, Southern Germany, and Switzerland; in the latter country they are popularly known as Mountain Nightingales, from the height to which they often ascend. Even the icy and rugged tracts of Scandinavia and Lapland seem to suit their requirements; and we have often seen them hopping nimbly over the glaciers, in situations where no other living object was discernible. Individuals inhabiting more southern latitudes display the same liking for barren ground, and are usually seen in localities so sterile and arid as to appear totally incapable of affording them a sufficient supply of the insects upon which they subsist. Their disposition is lively, restless, vigilant, and very unsocial; only during their winter migrations do they commingle with others of their species. Even when circumstances compel a certain amount of neighbourship, each bird lives for itself, without appearing to take the slightest interest in the proceedings of others in the vicinity.