The diederik cuckoo (Chrysococcyx caprius), formerly dideric cuckoo or didric cuckoo is a member of the cuckoo order of birds, the Cuculiformes, which also includes the roadrunners and the anis.
The diederik cuckoo is a smallish cuckoo at 18 to 20 cm. Adult males are glossy green above with copper-sheened areas on the back and whitish underparts. They have a broken white eye-stripe and a short, green malar stripe. All remiges have three to four white spots on the inner vanes. The four green outer tail feathers are tipped white, and the outermost pair are spotted white on both vanes.