. "Animalia" . "Klaas's Cuckoo" . . . "Chrysococcyx klaas (Stephens 1815)" . . . . . . "Aves" . "Chrysococcyx" . "Cuculiformes" . "Chordata" . . . . . "Cuculidae" . "(Stephens 1815)" . . . . "Chrysococcyx klaas" .