Cuckoo Bird Mythology. One bird that has a deep spiritual significance is the cuckoo bird. In greek mythology, the goddess hera believed the cuckoo bird to be sacred.
In russian folklore the erzians from mordovia the story is that the cuckoo was destined to become a domestic bird, however, at first it promised and then refused. These birds are connected with the beginning of the monsoon season, fertility, hope, and the beginning of the new.