The collared bush-robin or Johnstone's robin[3] (Tarsiger johnstoniae) is a species of bird in the family Muscicapidae.

This species was described as Ianthia johnstoniae by William Robert Ogilvie-Grant in 1906: the specimens were collected by Walter Goodfellow on Yushan (Mount Morrison).

[4] The species' eponym is named after Marion A. Johnstone, a well-known aviculturist to whom Goodfellow previously sent a specimen of a lorikeet.

[4] Endemic to Taiwan, this robin's habitat is montane and subalpine forests, usually at elevations of 2,000–2,800 m (6,600–9,200 ft) and sometimes above the tree line.

It catches insects by striking from perches, and it also forages for invertebrates on the ground and in low plants.

[3] It sings from a perch, giving a series of phrases each consisting of two or three high-pitched, sibilant notes.