Half formed means they stopped developing and died, that's why she kicking them out.Ok so the eggs were fertile but they only half developed!?! I've put 4 brought eggs under her now and her old eggs are well well over 21 days and she has begun kicking the old ones out, so I checked one with a torch and op bed it and it's half formed!!! I'm unsure what to do if these brought eggs don't hatch??? Worried she will be sitting in her box forever if nothing happens lol HELP!!!
Have you checked the eggs still under her with a torch?
So she's been sitting for, what, 5 weeks now?!....all day and all night, all that time?
Giving her more fresh fertile eggs(at least I hope they are fertile) is really not a good thing to do if she's been sitting so long already.