"In the full grown male the bill is about half an inch long, straight, somewhat blunt, broad and flat at the base. The upper mandible has an exceedingly indistinct notch, and is greyish blue; the under mandible yellowish, with a tinge of red; the angles yellowish, and the opening of the mouth lemon yellow. The tongue is yellow, abrupt at the point, and furnished with three bristles. The iris is dusky brown. The forehead is low, flat, angular, and pointed. The eyebrows and eyelids are yellow, and a yellow line runs from the nostrils to the eyes. The crown of the head, neck, back, and wing-coverts are olive grey, inclining more to green on the rump. The shoulder of the wing (_campterium_, ILLIGER) is yellow: the primary quill-feathers are dusky brown, with a slight fringe of olive grey; the rest of the quill-feathers have a broader fringe of greyish white, which, when the wing is closed, forms a whitish patch. The tail is two inches long, the feathers being of equal length, and of very nearly the same colours and tinge as the wing-quills. All the under parts of the body are of a fine clear lemon colour. The legs are five-sixths of an inch high, and of a lead colour; the claws greyish brown. The whole length is five inches and a half; the extent of the wings nine inches. The female is sometimes, but not always, rather paler than the male. The young have the yellow parts very pale. A species very similar to this has been discovered in Italy by Prince C. Buonaparte--the _Sylvia icterina_? of Vieillot, which frequents marshy places. THE COMMON CHIFF-CHAFF. [Illustration] Sylva loquax, HERBERT; S. Hippolais, MONTAGU; but not the _S. Hippolais_ of the Continental authors, which is _S. polyglotta_. COLONEL MONTAGU AND MR. SWEET'S ACCOUNT OF THE CHIFF-CHAFF. This bird weighs about two or nearly three drachms; the length varies from four inches and a half to five inches. This species is nearly the same size as the hay-bird. In its plumage it so much resembles that bird, that we shall only make mention here of some essential marks of distinction, and refer our readers to the hay-bird. Its general colour is not so much tinged with yellow, and the legs are dusky, which in the other are brown. The plumage of the sexes are alike.