My problem is that I was away when the eggs were laid, Jenny, so I can't be sure!
But I have two leucistic axies and two much younger 'black' axies in the tank. (I say black because they were sold to me as that, but I now think they're actually wildtype..? Dark on top, but lighter and speckled around the legs and belly.)
Before the genetics of the thing was explained to me, I was sure it was the leucistic pair who had bred, since they're so much larger than the little black pair, and appear to be sexually mature. But Mik assures me that the leucistic pair can't have preduced dark eggs on their own, so.. who knows!! lol!
What do you reckon?