I have very tame hen cockatiel for 2 years. last two weeks she started laying eggs on the bottom of the cage with no nest box or dietary change or anything to emulate breeding season. now we are at 6 eggs.
She was paired with another tiel in the same cage. who supposedly is a pied cock yet to confirm the gender. Anyway, he is way too young for breeding he is 7 months.
So, I built her a nest box and at the time she had only two eggs. I put the eggs in the nest box, hoping she would sit on them. she wouldn't go near the nest box until I put a millet stick in front of the entrance and she went in and laid all the other eggs.
The young cock likes to sit on the eggs but after I put in the nest box the hen won’t let him go near it. up to the point that she is attacking him and I had to separate him to another cage. after the 4th egg was laid I candled all the eggs and they all were blanks. They seem not to be compatible at all.
I hope that's enough background details. Now my problem/dilemma. I got another mature 3-year-old cock. Putting the new pair next to each other didn't raise any red flags. my question is should I wait until the hen sits on the eggs for the 21 days and remove the eggs or remove the eggs now and put the new pair in the same cage? If there are other options please let me know.