You are in Australia, if I am not mistaken the UK standard is for them to have tails (Aracuana). I don't know if lavender is an excepted variety or not. She has the proper comb type, and some of them have tufts. Some don't because of a lethal gene when two tufted birds breed together. I am not sure of all this, its my guess. Hopefully another person can chime in. She is beautiful though, good luck!!!!