blackshouldered

The term "blackshouldered" most commonly refers to a specific plumage pattern found in certain breeds of domestic fowl, particularly chickens. This pattern is characterized by a dark, often black, coloration on the shoulders and upper back of the bird, contrasting with other areas of their plumage. The exact appearance can vary depending on the breed and the genetics of the individual bird.

In chickens, the blackshouldered trait is an example of gene interaction affecting feather color. It is often seen in conjunction with other color genes, leading to diverse appearances. For instance, a blackshouldered rooster might display black feathers on its shoulders and hackle, while its body is a different color, perhaps white or red. Hens with this trait may have less pronounced markings but still exhibit the dark coloration in the shoulder area.

Beyond chickens, the term "blackshouldered" can occasionally be used descriptively for other animals that exhibit a similar dark coloration on their shoulder area. However, its primary and most recognized application remains within poultry breeding and genetics. The inheritance patterns of the genes responsible for this trait have been studied in poultry, contributing to the understanding of avian genetics.