What distinctive feature does a Goshawk have above its eye?

The Goshawk is characterized by a prominent white superciliary line, which is a distinct feature above its eye. This feature helps in identification, as it creates a stark contrast against the darker plumage of the bird, making it more recognizable in the field. The superciliary line aids birdwatchers and falconers in distinguishing the Goshawk from other birds of prey, especially those that possess similar body shapes and sizes. The importance of this identifying characteristic lies in its role not only in identification but also in understanding the species' behavior and regional variations. The other options, while they describe features found in raptors, do not specifically relate to the distinct marking that helps identify the Goshawk.