A major problem with people this day and age is the try to pass off mixed birds as pure and then someone innocently buys the impure birds and mixes it with something and then they sell it claiming its a pure. This is what I have seen recently and am appalled by it. This is how all of our wonderful breeds of birds have started to become nothing but pure uncertainty and complete loss of intention. I believe if you don't have pure birds and you KNOW IT, that is just absolutely the wrong and unethical thing to do. And even if you think it's sterile you never know so guys just please be more careful with what you do! I can't stress that enough!