Do the cuckoo need nest?

Rhododendron does not need a nest.This bird itself does not have the habit of camp nests. Even in the reproduction period, it will not build its own nests. Instead, it produces its own eggs into the nest of other birds. Generally, its eggs and hosts of the hostApproaching, so it is not easy to distinguish, and it will take a egg away to avoid being suspected of being the host.The chicks are also earlier, and other bird eggs will be pushed out of the nest after the shell.