What do you do with unhatched Finch eggs?

For many types of finches it will take 2-3 weeks for eggs to hatch once the parents start incubating them. If the elapsed time has been longer than this, and they still have not hatched they are probably infertile. In this case, you can just remove the eggs from the nest and toss them. There is no need to keep the eggs as the female will lay more.