What does it mean for a hawk to be fed rangle?

When a hawk is fed rangle, it refers to the process of removing grease from the feathers of the bird. This is an important aspect of falconry, as maintaining the cleanliness of a hawk's feathers is crucial for its health and ability to fly effectively. Grease buildup can inhibit a hawk's flight performance and lead to feather maintenance issues, so falconers will make efforts to ensure that their birds are free of excess grease.

The other options relate to different aspects of a hawk's care or management but do not align with the specific term "rangle." For example, weighing a hawk is a standard practice to monitor its health and diet, while training involves teaching the bird to respond to commands or perform specific tasks. Cleansing might involve bathing or washing the bird, but this is not specifically what rangle refers to.