So wrote Taevia M of her experience singing to her parrot. Song is a gift. Your parrots will agree that you gave them something special if you sing to them. It does not matter if you do not sing pretty, some birds don't sing pretty either. My parrots love to sing along with me as shown in the picture.
Cockatoos are fun-loving and tend to get excited and enthusiastic.
Bringing them together for a round or two of songs helps their overall behavior in my home. Each of your birds should have a special song. A song that is all their own. This song is something they will immediately recognize. It is like a contact call straight to their soul.