Red-flanked Bluetail

The red-flanked bluetail, also known as the orange-flanked bush robin, is a small passerine of the Old World flycatcher family, 13–14 cm long and 10–18 g, similar in size to the common redstart and slightly smaller than the European robin. As the name implies, both sexes have a blue tail and rump and orange-red flanks, with a white throat, greyish-white underparts, a small thin black bill and slender black legs (Wikipedia, general species account).

It is migratory, breeding in mixed coniferous forests with undergrowth in northern Asia, parts of central Asia and north-eastern Europe, and wintering mainly in south-east Asia, the Indian subcontinent, the Himalaya, Taiwan and northern Indochina. Its call is a typical chat tacc. The nest is built on or near the ground, with three to five eggs incubated by the female. SoIB 2023 lists it as a winter migrant forest bird that eats invertebrates, without a priority category (Wikipedia, general species account; SoIB 2023).