A parrot has learned to imitate a popular ringtone and now hums it when it's sad
When Lucky's cockatiel's owners get ready to leave the house and start tying their shoelaces, the parrot imitates the original iPhone ringtone to get their attention. In a similar way, the bird communicates that it is sad because of the impending separation.
Once upon a time, the bird noticed that the ringtone attracted the attention of its owners and is now trying to achieve a similar effect by imitating the melody