Mom looks for a nest.

Mom sees a nest.

It is not her nest.

The nest has eggs in it.

Mom lays her egg.

Then she goes.

The warblers sit on the eggs.

The eggs look the same.

The cuckoo is born first.

The warblers think he is their baby.

They go to get him food.

The baby pushes the eggs.

The eggs fall out of the nest.

The eggs fall to the ground.

The cuckoo grows fast.

The warblers come back.

They feed the baby.

He grows fast.

He grows big.

He is a cuckoo.