In terms of both structure and behavior, which group is described as “primarily ground-oriented hunters”?

The group described as “primarily ground-oriented hunters” is the Buteos. Buteos, which include species such as the red-tailed hawk, are known for their bulky build and broad wings. They typically hunt from a perch or by gliding low over open ground in search of prey. This hunting strategy allows them to effectively spot small mammals, birds, and reptiles that may be hidden in grass or low vegetation.

Their behavior complements their physical structure, as their larger wings give them the ability to soar and cover large areas while searching for food, and they often stay in contact with the ground. This is in contrast to Accipiters, which are more adapted to hunting in forests and among trees, and often rely on speed and agility to capture prey in flight. Falcons, known for their speed and aerial hunting, generally pursue airborne prey. Ospreys are specialized in hunting fish near water bodies, demonstrating a different ecological niche. The Buteos' characteristics align with the description of ground-oriented hunting, making this group the answer to the question.