What does cuckoo eat and where do they live?

Cuckoos primarily eat insects, particularly caterpillars, as well as other small invertebrates. They are known for their brood parasitism, laying their eggs in the nests of other bird species. Cuckoos can be found in a variety of habitats, including woodlands, grasslands, and urban areas, depending on the species. They are distributed across many parts of the world, with different species adapted to specific environments.