What is the term for a hawk that has been taken from the nest?

The term for a hawk that has been taken from the nest is "Eyas." This term specifically refers to a young, unfledged bird of prey, particularly falcons and hawks, that is still dependent on its parents for feeding and care.

The process of capturing an eyas is a significant method in falconry, as it allows falconers to train a young bird from a very early age, ensuring that the bird is more likely to bond with the falconer and develop behaviors that are crucial for a successful hunting partnership.

Other terms like "eyed," "eyebrow," and "feathered" do not have the same specific meaning in the context of falconry. "Eyed" and "eyebrow" are not recognized terms for any stage of a bird's development, while "feathered" might describe a bird that has its feathers fully developed but does not specifically relate to the young, nest-based context that "eyas" does. Thus, "Eyas" is the correct term to use when referring to a hawk that has been taken from the nest.