THE EARED STONE CHAT AND BLACK-THROATED STONE CHAT.

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.

The flight of the Stone Chat is remarkable, owing to the fact that,

at whatever height the perch may be from which it starts, the bird

invariably sinks towards the ground, close to the surface of which it

always flies, in a series of short, undulating lines. At the approach

of the breeding season this mode of flight is changed, and the bird

then entertains itself and its mate by repeatedly soaring into the air

to a height of some twenty or thirty feet, singing as it goes, and then

descending precipitately, to end its joyous song upon its favourite

perch. When standing upon a stone or rock, it holds its body erect,

shakes its tail, and, should anything unusual catch its eye, at once

commences bowing repeatedly. This strange habit has given rise to

its Spanish name of the "Sacristan," in allusion to the genuflexions

practised by the monks. The voices of all the species we have described

are loud and peculiar, but by no means pleasing. Of their performance,

however, it may be said that what is wanting in quality is made up by the

energy and persistency with which their song is poured out, not only from

daybreak to sunset, but long after night has closed in. The nest, which

is for the most part built in holes and fissures of rocks and stones,

or occasionally in hollow trees, is carefully concealed from view. Its

dense roughly-made exterior is formed of fibres, grass, and stalks,

lined thickly and warmly with wool, hair, or feathers; the eggs, from

five to seven in number, are of a delicate blueish or greenish white,

occasionally, but rarely, spotted with pale yellow. The female hatches

her brood with but little assistance from her mate, who perches near, in

order to keep a strict watch against the approach of danger, and warns

her of its appearance by an anxious cry. But one brood is produced in the

season, the first eggs being laid about May; occasionally, however, the

female produces two broods. The young remain with the parents till the

winter migration, which takes place in September. In March they again

return to their native lands.

* * * * *

The RUNNING WARBLERS (_Dromolæa_) constitute another group of this

family, recognisable by the predominance of black in the coloration of

their plumage, and by the formation of their comparatively long and much

compressed beak, which is broad at its base, and very decidedly curved

and hooked at its extremity. The wings are long and pointed.

Cassell's book of birds; vol. 2 · 第 275 / 380 题