Hi My JOJO [Male] :grey tiel: & JUJU [Female] earl:Laid 3 eggs and hatched 4 months back. Now all together in the same cage. Today I saw My Male Father JOJO Cockatiel mated with his own chick JEJE earl: female cockatiel [After Mate Only I confirmed as She's a Female]. Her Mother JUJU sit next to her and hit her beaks. Is it Normal or i need 2 do something.