By Alandmanson - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=52838837
Koekoek
Sources:
(*) https://en.wikipedia.org/wiki/Klaas%27s_cuckoo
(*) https://ebird.org/species/klacuc1
(*) https://search.macaulaylibrary.org/catalog?taxonCode=klacuc1