They can develop eggs from about 6 months on having been mated or not. If not mated,they will be infertile, but they still have to come out, so always good to have a laying bin on hand. When she gets ready to lay, she will lose her appetite or go off food completely and start wandering around the cage looking for a suitable place to dig and lay the eggs. She will also get fatter! Sometimes you can even see the outline of the eggs.
