He hides his true intentions by disguising his call signal in a way that makes it so we can never really identify him in the forest. He flies quickly from one location to another so that it sounds like there are a lot of cuckoo birds in the neighborhood, but that is just part of his overall strategy of lies, deceit and illusion.
Esconde sus verdaderas intenciones disfrazando su canto de una manera que en realidad nunca podemos identificarlo en el bosque. Vuela velozmente de un lugar a otro para que parezca que hay muchos cuclillos cerca, pero eso es simplemente parte de su estrategia global de mentiras, engaño e ilusión.