If a hawk becomes tame and well-mannered but refuses to eat and shows signs of extreme thirst, what is the most likely condition she has?

The most likely condition indicated by a hawk that is tame and well-mannered but refuses to eat and shows signs of extreme thirst is aspergillosis. Aspergillosis is a fungal infection caused by the Aspergillus species, which can lead to respiratory distress and other systemic issues. Infected birds may exhibit lethargy, loss of appetite, and increased thirst due to dehydration, all of which align with the symptoms described.

The other conditions listed—coccidiosis, frounce, and cramp—typically present with different symptoms or circumstances. Coccidiosis is a parasitic infection that usually manifests with gastrointestinal distress, such as diarrhea. Frounce, caused by a protozoan, affects the mouth and throat, leading to symptoms such as difficulty in eating or swallowing rather than a complete refusal to eat and thirst. Cramp, or a muscle spasm condition, does not relate directly to the refusal to eat or excessive thirst.

These distinctions illustrate why aspergillosis is the most plausible explanation for the hawk's symptoms in this scenario.