Hi Emmy,
Yes, I only have the Zebra finches now, they are such fascinating little birds and can give you a few surprises with their offspring. When I initially got the 10 (5 pairs) I started out with, which were Normals, CFW and Fawn I expected just that in the youg but then all of a sudden along comes a Pied.
At the moment I am building another larger birdroom by converting a 7ft by 7ft shed to a 13ft by 7ft one, then that with the existing 10ft by 6ft one should then give me plenty of room. I'll try and get some pictures posted up soon.
Clive