September. * * * * * The BLUE-THROATED WARBLERS (_Cyanecula_) are birds with slender bodies, short blunt wings, and high, slender legs. Their long beak is compressed at the nostrils, the upper mandible slightly raised, but sharp-pointed at its extremity. The plumage is lax, and varies in hue with the age or sex of the bird. In the male the upper part of the body is dark brown, the under side dirty white, streaked at the sides with greyish brown. The throat, which is of a magnificent ultramarine blue, is decorated in some instances with a dark star, which spreads and extends downwards like a black streak, separated from a crescent-shaped spot upon the breast by a delicate light line. A band across the eyes is of a whitish, and the bridles of a blackish hue. The quills are brownish grey; the tail-feathers, except in the centre, blackish-brown at their distal half; rust-red towards the roots. The eye is dark brown, the beak black, the feet greenish in front, and yellowish grey behind. In the plumage of the female all the colours are paler than those of her mate. The young are spotted with rust-red on the back, and striped on the under side, their throat being whitish. This bird is six inches long and eight and a half broad; the wing measures two inches and three-quarters, and the tail two inches and a quarter. The various species of Blue-throated Warblers are distinguishable from each other by the somewhat varied coloration of their throats; thus, that of the male SWEDISH BLUE-THROAT (_Cyanecula Suecica_) has a reddish star in its centre, the WHITE-STARRED BLUE-THROAT (_Cyanecula leucocyana_) a white star, whilst the _Cyanecula Wolfii_ is entirely without this decoration. [Illustration: THE SWEDISH BLUE-THROAT (_Cyanecula Suecica_).] Of these the _Cyanecula leucocyana_ is the largest, and the _Cyanecula Wolfii_ the smallest species. The females of all closely resemble their mates in appearance.