I came home from work today and went to feed my budgies when I discovered two tiny eggs at the bottom of their cage. They'd been abandoned and were cold so I took them out and disposed of them. It's really strange that they laid eggs as I'm not providing a box or any nesting material. I hope they don't lay any more as I really don't want little baby budgies - I don't think I'd be able to put up with the worry whether little things are going to survive. Anyway, I think four budgies are enough for me at the moment.
Here are a few pics of the little eggs they produced (excuse my wrinkly hand - I'd just finished doing the washing up)