Although by no means scarce, it is seldom seen unless specially searched for, most of its time being spent quietly hopping about the undergrowth searching for food, which consists almost entirely of minute insects, small caterpillars, etc. etc. It is never seen in flocks, even when migrating, a few family parties in autumn being the most that are ever noticed together.
This bird has no distinctive plumage, and except for its note is very difficult to identify. The crown is smoke grey, cheeks and rest of the upper parts brownish grey, the outer feathers of the tail having white outer webs. Under parts whitish, becoming buff on the flanks. Bill black; legs slate colour. Length 5·25 in.; wing 2·6 in. The female and young are rather duller in colour.
In our southern, eastern, and midland counties it is a fairly abundant summer visitor; in the West and North of England and South of Scotland it is decidedly rare, and over the rest of our islands it is a very irregular straggler and has only once occurred in Ireland.
THE ORPHÆN WARBLER
Sylvia orphea, Temminck
This species nests abundantly in Spain and more sparingly in the South of France, but has been taken in this country on at least two occasions, on both of which the evidence pointed to its breeding or having bred with us. The eggs, except in size, are much like those of the Lesser Whitethroat.
The bird itself much resembles a Blackcap, but the throat and breast are white and the three outer pairs of tail feathers show some white. The female is rather duller and browner. Length 6 in.; wing 3·1 in.
THE SARDINIAN WARBLER
Sylvia melanocephala, Gmelin
This small species, which is not unlike the Blackcap in general appearance, has a comparatively restricted distribution, being practically confined to the Mediterranean basin. The only British specimen that has hitherto been obtained was shot on June 3, 1907, in Sussex.
General colour of upper parts dark grey, except the head, which is black. Lower parts white, greyish on the flanks. Length 5·5 in.; wing 2·5 in.