Robins, meadow pipits, sedge warblers, reed warblers, pied wagtails, dunnocks, bullfinches and others have become unwitting parents to those greedy baby cuckoos.
Rødstruper, heipiplerker, sivsangere, svartryggerler, jernspurver, dompaper og andre er uten å vite om det blitt foreldre til de grådige gjøkungene.jw2019 jw2019