What is the feather tuft on top of a longwing's hood known as?

The feather tuft on top of a longwing's hood is referred to as a plume. This term specifically denotes a feather or tuft that is often used for decorative purposes or for signaling in birds of prey, especially in falconry. The plume can serve various functions, such as aiding in communication between the bird and the handler or providing an aesthetic appeal during exhibitions. In the context of falconry, recognizing this feature is important for understanding the anatomy and handling of longwing species, which include various falcons.

While other terms like "tab," "crown," and "feather tuft" may describe similar structures or features, they do not accurately capture the specific terminology used in the falconry community for this particular part of the hood. Therefore, understanding that "plume" is the correct term helps in communicating effectively within the field and adhering to proper terminology and practices.