What characteristic does "Dirty" refer to in poultry coloration?

The term "Dirty" in poultry coloration specifically refers to the presence of unwanted flecks or spots within the plumage. This characteristic can detract from the overall appearance of the bird and may be undesirable in show contexts, as it suggests a lack of uniformity or purity in the feather color. Such imperfections can be a result of genetic factors or environmental influences that affect plumage appearance.

The context of poultry showmanship places a strong emphasis on the quality and presentation of the birds. A bird displaying a "Dirty" appearance may not meet the standard for cleanliness and aesthetics expected by judges. Therefore, having a clean and uniform feather color is crucial for success in poultry shows, making the identification of "Dirty" coloration an important aspect of breed standards and judging criteria.