Which bird is most likely to suffer from fits?

The Sharp-shinned Hawk is most likely to suffer from fits, which can be attributed to its specific physiological and environmental stressors. In this species, fits or seizures can result from various factors, including dietary deficiencies, stress, or exposure to certain environmental toxins. Their smaller size and specialized hunting techniques can make them more susceptible to these issues compared to larger raptors.

In contrast, while the Peregrine Falcon, Red-tailed Hawk, and Merlin may experience health issues, they are generally more resilient and less prone to fits under similar conditions. The Peregrine Falcon is often robust due to its widespread adaptability, the Red-tailed Hawk is known for its hardiness and versatility, and the Merlin, while smaller than the Red-tailed Hawk, possesses different hunting and survival traits that afford it a degree of resilience against such fits. Thus, the Sharp-shinned Hawk’s susceptibility makes it the correct choice for this question.