The young ones of a cuckoo bird are fed by a crow in its nest. This behavioural pattern is called__ .

The young ones of a cuckoo bird are fed by a crow in its nest. This b

1.	The young ones of a cuckoo bird are fed by a crow in its nest. This behavioural pattern is called__ .
Answer» The young ones of a cuckoo bird are fed by a crow in its nest. This behavioural pattern is called__ .