Aussie Finch Forum

I have a blue egg that has the normal brown tip but and has a blue colour

not uncommon for quail to lay bluish eggs, silers often do it.

it looks like moldy bread but blue

yes my quail lay blueish eggs, often speckled a bit with green and brown.
In different lights the eggs might look sickly green :

does it mean a good or bad egg

Too soon to tell. Just leave it to the quail to work out. Mine lay from quite blue to quite green. And vary from almost completely clear to middling speckles. Does not seem to make any difference to the fertility.
LML

but it is blue with a darker blue in the middle and normal colour tip on the egg

Sorry, without seeing it I can't really say anything more than I have said. Just wait and see how the next ones look.
LML

the next egg

Yes.
LML