What species does the term 'longwing' refer to?

The term 'longwing' specifically refers to certain members of the family Falconidae, particularly those falcons characterized by their long, pointed wings and often darker plumage around the eyes. The classification is not broad, encompassing all birds of prey or just large falcons, as these categories would include a variety of raptors with different physical traits and adaptations.

Longwings are typically associated with species such as peregrine falcons and merlins, which exhibit these distinctive wing shapes that allow for agile flight and hunting prowess. This unique adaptation is especially beneficial for their predatory behavior, which involves high-speed pursuits of other birds.

While other options suggest different groups of birds or too wide a range, they lack the specificity of defining longwings by their characteristic wing structure and eye coloration. Hence, this understanding of longwings is crucial in distinguishing them clearly within the diverse family of falcons.