Cockatiel male fights with female
I have a cockatiel pair form more then 1 year. Recently they lay 4 eggs of their first breeding clutch. From last week they were sitting on eggs for hatching on rotation basis like male in day and female in night. But from today male cockatiel is coming out of nest box sudden again and again and attaching female cockatiel. Why is that so and what I should do to settle this out as they have eggs on hatching. Also want to know that could female cockatiel can perform egg hatching process all alone means without need of male cockatiel in cage?