àwòko noun /à.wò.kō/
Definitions
  1. The nightingale bird, known in Yoruba proverbs for its beautiful singing
    igbó kò ń pa ohùn mọ́ àwòko lẹ́nu The forest or bush cannot shut up the voice of the nightingale
Source: Wiktionary, where this word is spelled “awoko”. Reference: en-awoko-yo-noun-mu874ugT