A little bird with an awful lot of names - it used to be placed in the parsinoma genus and called either Chestnut-vented or Rufous-vented Tit-babbler.
It is now placed in the sylvia genus and is called either Chectnut-vented or Rufous-vented Warbler.
It is also sometimes called Cape Warbler, Southern Warbler or even Southern Tit-warbler. All very confusing !