Yellow-breasted forest robin

The yellow-breasted forest robin, also known as the eastern forest robin, is a species of passerine bird in the family Muscicapidae that is found at low levels in forests from Cameroon and Gabon to DR Congo, Congo and Uganda. In 1999 it was recommended that it should be treated as a separate species instead of a subspecies.

Taxonomy

The yellow-breasted forest robin was formally described in 1903 by the English ornithologist Richard [Bowdler Sharpe] under the current binomial name Stiphrornis xanthogaster based on a specimen collected on the banks of the Dja River in Cameroon. The specific epithet combines the Ancient Greek ξανθος/xanthos meaning "yellow" with γαστηρ/gastēr meaning "belly".
Three subspecies are recognised:

S. x. xanthogaster Sharpe, 1903 – southeast Cameroon and northeast Gabon to north, central DR Congo and south Uganda
S. x. sanghensis Beresford & Cracraft, 1999 – southwest Central African Republic
S. x. rudderi Voelker, Tobler, Prestridge, Duijm, Groenenberg, Martin, AD, Nieman & Roselaar & Huntley, 2017 – central north DR Congo