Not to worry you... but that can mean two things.
1) The egg is about to hatch
2) The egg has died and is finally "caving" in
I have had infertile eggs not collapse for over 60 days, they looked like perfect eggs, but when candled they was no development.
I have also had still born babies... they go almost full term, then die for whatever reason. These eggs look good the whole incubation period but never hatch.
But like I said, no need to worry, whatever is going to happen will happen. I wish you the best of luck.
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-Ross Payan - www.LeosAnonymous.com
Leos Anonymous
Red Striped Tangerines, Carrot Tails and Screaming Amel Fat-Tails