Harris' hawk hunts which of the following?

The Harris' hawk is known for its versatility and adaptability in hunting a variety of prey, which includes small to medium-sized mammals and birds. Its diet typically consists of cottontails, jackrabbits, and birds such as pheasant and quail. This hunting behavior is facilitated by their sociable nature, often hunting in groups, which allows them to take down larger prey effectively.

When considering the other options, they either limit the range of prey or include species that are not typical targets for Harris' hawks. For instance, while jackrabbits and cottontails are indeed part of their diet, the absence of birds like pheasant and quail in some choices does not comprehensively represent the Harris' hawk's hunting capabilities. The correct choice acknowledges the full spectrum of their hunting behavior, including both small mammals and various game birds.