PA requires that birds breed true to type, colour size and comb at least 50% of the time. That means that they can also be incorrect up to 50% of the time. That os in the standard. Yes, you can show and even place any bird that actually meets the standard, even if it is a mutt cross that happened.to get all the correct features, but it would likely not come even close.to breeding true. using non tufted araucanas, on the other hand will breed true 50% of the time, and thus is within the standards.