Technically 25% chances per eggs.
My first year shooting for pieds I hatch 4 pieds out of 8 eggs
Now since you have doubt about your female try not to get too excited just in case she does not prove out.
Also remember if she does not prove this time around it does not mean you should rule her out as a het pied it might take another try to prove her out, all depends on your luck
Hopefully she will prove out for you and you will hatch a few pieds![]()