Hi,
It sounds like you may have two females. There are too many eggs that were laid too close together for one female to do this. Each egg takes 48 hours to develop and move through the reproductive tract. They do not store developed eggs inside them, so a hen lays one egg, every other day. It would be rare for her to lay two days in a row, and would indicate a problem with moving the eggs through her system. Laying two eggs the same day is next to impossible, especially if she really did lay an egg two days in a row before that. When you get multiple eggs too quickly, this usually means you have two females. Otherwise, your hen has an issue that could end up causing her to be eggbound and die. It’s not safe at all for her if her eggs are getting stuck at some point during the process. This means an egg can get broken inside of her or she can become egg bound – both of these are usually fatal. I would take her to an avian vet for an exam, if you are 100% sure you have a male and female. I understand that Rosellas can be visually sexed, but that is not always accurate, so DNA sexing is recommended in a case like this.
As for the eggs, they are not going to be viable anymore, even if they were fertile. Fertile eggs can be allowed to cool once, and might survive. But they can’t be kept warm, then cooled, then warm, then cooled, and so on. These eggs will not have even started to develop, Eggs must be kept warm for at least 48 hours around the clock before they even begin to develop.
Never give the eggs to another pair of birds – especially a pair that is already raising chicks. As soon as your conure chicks leave the nest box, you need to remove the nest box and rest your pair for at least 6 months before allowing them to breed again. You can’t allow pairs to breed over and over or the hen will end up dying from laying eggs too often. Males that are overbred can also die from exhaustion. In the wild, they would usually only raise one clutch per year, then the season changes and they leave their breeding area until the next year. In captivity, without the signals from nature, a pair will literally breed over and over until it kills them.
Thank you for asking Lafeber,
Brenda