What happened with this egg?!?!

[MIChickandGuinea]

She didn't molt last fall?
ISA are high production birds...can be more susceptible to reproductive tracts issues.

She molted in the early fall and was back all feathery and fluffy before it got cold.

 

[aart]

She molted in the early fall and was back all feathery and fluffy before it got cold.

At least she got a break...hard to say what will happen in the future...softie then this cracked thing.
Did you open it up?
Immediately peel off the inner membranes.....examining the shell might be interesting.