Which of the following species typically builds the largest nest of North American hawks?

The Ferruginous hawk is known for constructing the largest nest among North American hawks. This species typically prefers to build its nests in tall structures such as trees or on cliffs, taking advantage of the elevated positions to keep their nests safe from predators and to provide a commanding view of their surroundings. The size of the Ferruginous hawk's nests can reach impressive dimensions, often measuring up to six feet in diameter and several feet deep, depending on the availability of materials and the area. This capability distinguishes them from other hawk species, which generally create smaller nests.

The Red-shouldered hawk, Red-tailed hawk, and Harris's hawk, while also skilled nest builders, do not reach the same size or volume in their nest construction as the Ferruginous hawk. Understanding the nesting behaviors and sizes of different hawk species is essential for falconers and conservationists, as it contributes to habitat management and species protection efforts.