Very similar in appearance to other Larks, but, as its name indicates, the hind claw is short. The under parts are white and unspotted except for a few streaks on the sides of the neck. Length 5·5 in.; wing 3·4 in.
THE WHITE-WINGED LARK
Alauda sibirica, J. F. Gmelin
This species breeds across Central Russia and through the Kirghiz steppes as far as the Altai, migrating southwards in winter. Has only once occurred in England. The bill is short and stout, and this species may be at once recognised by the white inner primaries and secondaries, which form a conspicuous patch. Length 7·5 in.; wing 4·6 in.
THE BLACK LARK
Melanocorypha yeltoniensis (Forster)
This species inhabits South Russia, Transcaspia, and Western Siberia. In the winter of 1906 a small flock, consisting of both males and females, arrived in Sussex, being presumably driven westwards owing to the severity of the weather.
The male has the entire plumage jet black, but in winter this colour is largely obscured by broad sandy margins to the feathers. The female is pale sandy brown with darker markings, under parts white, spotted on the throat and breast. Length about 7·7 in.; wing 5·3 in.
SHORE LARK
Otocorys alpestris (Linnæus)
A very different bird is this from the other Larks with which we have been dealing. He is seldom seen in this country, and then only in small numbers and at irregular periods.
The wide tundras of the North form his home, and there he may be found plentifully, but as the long Arctic day gives way to the cold black night, he reluctantly retires and passes the winter in the temperate portions of the northern hemisphere. In these islands we are just on the fringe of his wanderings, and almost every year a few stragglers put in an appearance on our eastern coast in autumn; their visits are of but short duration, and as a rule they quickly pass away southwards. With very severe weather on the Continent, however, they may appear in some numbers towards midwinter, and at such times remain with us till at the first sign of coming spring they are off again to their dearly loved home in the North.
General colour above pale sandy brown, tinged with rufous on the back of the head and nape. Forehead and a superciliary stripe white; a band across the head, lores, cheeks, and a triangular band across the chest, black; rest of under parts white, inclined to rufous on the breast and flanks. The female is smaller and duller. Length about 7 in.; wing 4·4 in.