sulfur crested cockatoo has laid an egg

by kim
(gold coast australia)

and yes she does have a boyfriend of almost 20 years a major mitchel ,they have been doing the deed for a while.however the indoor cage is not really set up for breeding, she has done all the work herself on the bottom of the cage paper and sheets and so far she is staying on the egg ,i think there may be more to come what should i do? i would like to hand raise any young that may come but what should i do in the mean time.
you have to admit a cross breed from these two would look beautiful.