A small greenish mute from a hawk that seems otherwise healthy likely indicates what?

A small greenish mute from a hawk that appears otherwise healthy likely indicates an empty crop. The crop is a storage pouch in the digestive system where food is held before it enters the stomach. When a hawk has emptied its crop, the feces produced may appear small and greenish, reflecting the digestive process when there is little to no content present.

The other conditions listed, such as frounce, coccidiosis, and roundworm infestation, often present with additional symptoms such as lethargy, changes in behavior, or varying degrees of illness. For example, frounce might show signs of respiratory distress or oral lesions, while coccidiosis usually causes significant digestive upset and potentially severe health deterioration. Roundworm infestations may lead to physical weakness, weight loss, and gastrointestinal symptoms. In contrast, an empty crop denotes a normal digestive cycle wherein the bird is simply in a fasting state or has not yet had its next feeding, hence the absence of food or waste in the crop and resultant muted fecal output.