What characteristic does the term "Willow" refer to besides color?

The term "Willow" is specifically associated with a color variation found in certain poultry breeds, but it also refers to a specific breed variety that is recognized within the poultry industry. This means that "Willow" not only describes the shade of feathers but also indicates a distinct classification or subtype within a breed. Recognizing this relationship is important in poultry shows, where understanding breed standards and specific characteristics is crucial for successful showmanship.

The other options, while they may relate to poultry in general, do not encapsulate the dual significance of "Willow" as both a color and a reference to a specific breed variety. Feather texture, body shape, and growth pattern are important traits in evaluating poultry but do not carry the same informative weight as the designation of a breed variety.