I’m not sure I understand your question. No, that’s wrong. I’m sure I don’t understand your question.
There are several recognized color/patterns of Wyandottes. Different combinations of those will give you red sex links, Gold Laced or Partridge rooster over a Silver Laced hen for example, but there are others. The offspring will not be a recognized color/pattern but with proper breeding they can have the other characteristics of Wyandottes. There are a lot of things that makes a Wyandotte a Wyandotte other than color/pattern. Body conformation, size, eye color, comb, skin color, number of toes, feathered or clean legs, the list goes on and on.
Some people only consider a chicken that has one of the recognized colors/patterns and all this other stuff as a Wyandotte. But there are a surprising number of people out there trying to breed new colors/patterns for a lot of different breeds, hoping eventually to get a new color/pattern recognized. If someone has a chicken that has every characteristic of a Wyandotte except a recognized color/pattern is that considered a Wyandotte? For example you often see people talking about Blue Copper Marans on this forum. Black Copper Marans are a recognized color, Blue is not, at least in the US. I can’t speak for all countries.
To further complicate it different countries have different standards. For example, in the UK Araucanas are allowed to have tails, in the US they are not. Different colors/patterns are recognized in different countries. It can be challenging to talk about breed standards on an international forum.
But there is another core issue. When you cross two different colors/patterns you can get predictable results if the parents are pure for certain genes. But once you mix colors/patterns you cannot breed those birds with any consistency. There is a rule of thumb that for a bird to be considered purebred it has to breed true for five generations. When you breed crosses that will not hold true for one generation. To get sex links you have to breed different colors/patterns.
There is yet another issue. To make sex links the parents have to be set up right genetically. The mother has to have the dominant sex linked gene. The hen only has one gene at this “gene pair” location. The father has to have two copies of the recessive sex linked gene. That’s what makes sex links. The mother only gives the dominant gene to her boys. The father gives a recessive to all his offspring. So the dominant gene shows up in the cockerels but not in the pullets. After you make that cross the genetics are no longer set up right. You cannot use sex links to make more sex links of the same type. You cannot use red sex links to make more red sex links. You cannot use black sex links to make more black sex links. Feather sexing is only good for one generation. After that the genetics are messed up.
There are autosexing breeds out there. To make an autosexing Wyandotte of an unrecognized color/pattern you would need to introduce the right genetics from a different breed, then go through many generations getting consistently back to what makes a Wyandotte; body conformation, shape of the tail, or whatever variant genes you introduced, while also breeding for the autosexing genetics. You are talking about many generations of expert breeding. It’s not a chore to be taken lightly.
I don’t know of this has answered your question or not.
