I've had a male and female cockatiel (male now 8 months, female 6 months; we think) for just under 2 months, they were supposedly hand reared however when I picked them up from the seller we weren't allowed in the house and we think they weren't treated the best, and were definitely not hand...

Hi, i was wondering if you can put two rows of nest boxes in a cage. Talking to another bird breeder, they mentioned that if you have two rows they will be fighting for the top nest boxes. Is this true? Have anyone experienced this before? Do I have to change my nest boxes to one row or can I...