Ask Lafeber


May 28, 2021

Cockatiel Breeding

I have a pair of Cockatiel and I keep them in my bedroom so that we can give them as much as attention as we can. They are with me for 3 years and I attached the breeding box to their cage 3 times. The female (Coco) laid eggs every time we attached the box. Now the problem comes that none of the eggs hatch. The give their full potential but all the eggs be infertile. I thought of checking the eggs but they are extra protective. I lost my hope when the third time the eggs did not hatch. I removed the breeding box but after some days, She laid 2 eggs in 6 hours and today (three days after she laid 2 eggs in 6 hours) she laid 2 eggs in 2 hours. I don’t understand what is the problem, Please Help.
I will be really thankful for your help


Hi Zahra,

It sounds like you may have two females. A cockatiel can only lay one egg, every other day. If two eggs showed up in the same day, then most likely both birds laid an egg. I would have the birds checked out by an avian Vet, because if she did somehow lay more than one egg in a day, there is something wrong with her reproductive system. The Vet may determine that the bird needs a hormone implant or shots to stop her from laying eggs for a while. It’s not good for her to keep laying eggs. Right now, I would not give them a nest box for a while. I think the birds need to see a Vet, and then need to rest from egg laying for at least 6 months. If you want, you can send pictures to and I can try to tell what their sex is. It depends on the color mutation. If both end up being females, then you will need to make some changes to try to stop the egg laying. I can help you with this once we know if they are both females and once they have been seen by an Avian Vet.

Thank you for asking Lafeber,


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