Thanks for the response, but it still doesn't answer the question, since a "cull" is not a breed of chicken.
I think that the statement is a general "sweep" and gives the impression that the requirement issue is "black and white", and doesn't provide a definative alternative for chickens that don't meet the requirement. If taken literally, all Marans roosters are not Marans, since none of them lay eggs. Perhaps a more accurate rendering of the requirement would be that a "hen that does not lay a 4 is not a "good" example of the Marans breed". No matter what the egg color, the chicken is still a Marans, it didn't suddenly become another breed on the day that it laid an inferior egg.
If it walks like a Marans, and it clucks like a Marans, and it looks like a Marans, it a ..........................
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