By Charles J. Sharp - Own work, from Sharp Photography, sharpphotography.co.uk, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=112454897
_male_Sao_Tome2.jpg)
Koekoek
Sources:
(*) https://en.wikipedia.org/wiki/African_emerald_cuckoo
(*) https://ebird.org/species/afecuc1
(*) https://search.macaulaylibrary.org/catalog?taxonCode=afecuc1