Thank you for all of the responses.

Sorry for being a bit ignorant when it comes to birds and eggs, but don't they need a male to fertilize them?

Noel is the only female tiel that we have, and she is caged separately. The two males are completely in love with eachother. They do everything together and scream frantically when one is taken out of the other's sight.

We've decided not to move into the house that was going to be painted, we are still moving within a month, so the information that everyone has given about the paint is still very helpful.

Noel has a lot of toys, but isn't really interested in them. She also has and uses a cuttlebone.

How do I tell if they're fertile? Someone told me to hold it up to a light and see if there's a spot.

Thanks again.