Upper parts ash-brown tinged with olive: throat, and fore part of the neck blue, with a central white spot.
S. Suecica, Temm. Man. d'Orn. torn. I. p. 216. Blue-throated Warbler, Lath. Syn. vol. II. p. 444. Blue-throated or Swedish Redbreast, Shaw, Nat. Misc. vol. xvi. pi. 661. Blue-throated Redstart, Selb. Illust. vol. I. p. 195. pl. 100. f. 2, 3.
Entire length five inches ten lines: length of the bill (from the forehead) five lines and a half, (from the gape) nine lines; of the tarsus one inch and half a line; of the tail two inches two lines; from the carpus to the end of the wing two inches eleven lines.
(Adult male). Upper parts brownish ash, tinged with olive; a whitish streak above the eye; throat, and fore part of the neck, bright azure, in the centre of which is a pure white spot, disappearing in advanced age; beneath the blue a border of black, and beyond this a broader one of red: belly, thighs, and vent, white: basal half of the tail rust-red, the remainder black; the two middle feathers similar to the back, and of one colour throughout. (Female). Upper parts resembling those of the male: throat, and fore part of the neck, white; upper part of the breast dusky, tinged with cinereous and azure, beneath which is a faint indication of the transverse red band; the rest of the under parts dirty white. (Young). Plumage brown, spotted with whitish; a large white space on the throat. (Egg). Uniform greenish blue: long, diam. eight lines; trans, diam. five lines and a half.
Extremely rare in this country. A single individual killed on Newcastle Town Moor, in May 1826, is now in the Museum at that place. Said to reside in forests, and to breed in the holes of decayed trees.