Yellow crowned Gonolek - Laniarius barbarus
The song and call of this individual bird can be heard through the player below.
Sexes similar. Entire upperparts black execpt for olive-yellow crown and nape. Underpart scarlet. Shy and often skulks in thick cover.
Usually in duet form, a loud whip-lash, whistling 'whee-oo' answered by a clicking 'tic-tic'
Various other harsh calls.