How do you say cuckoo in Belarusian?
— зязюля (zjazjúlja) (f)

Related synonyms for cuckoo in Belarusian
gooseгусь (f) (hus’); (m) (husák)
Generic synonyms for cuckoo in Belarusian
foolдурань (m) (dúran')
repeatпаўтараць (paŭtarác')