Right. It is all about phenotype when it comes to exhibition poultry and if it fits their Standards, that is what it is according to the APA/ABA....
Saying "This bird is an Aracauna" isn't saying "This bird has the genetics of an aracauna, comes from a long line of aracaunas, and will produce aracaunas" - its saying "This bird fits the breed description of an Aracauna".
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I'm not big into showing and as a breeder I understand it is still best to get the proper genotype to achieve consistent phenotype.