When it comes to hunting, Red-tailed Hawks are known for preying on which of the following?

Red-tailed Hawks are versatile predators that exhibit a broad diet, primarily consisting of small to medium-sized mammals, but they also include birds, reptiles, and occasionally fish in their hunting repertoire. The correct choice recognizes this diversity in their feeding habits.

While they predominantly hunt small mammals like rabbits and rodents, Red-tailed Hawks can also capture birds and reptiles when the opportunity arises. This adaptability in diet allows them to thrive in various habitats and conditions. They have excellent eyesight and hunting skills, giving them the advantage to hunt effectively across different prey types. Thus, the recognition of both birds and reptiles, alongside mammals, underscores the hawk's status as a generalist predator in the avian world.

This contrasts with the other options which limit their diet to specific categories, failing to capture the full range of the Red-tailed Hawk's hunting behavior and dietary flexibility.