Stick nests are not built by which of the following?

True falcons, unlike the other listed birds of prey, do not build stick nests. Instead, they typically utilize existing structures for nesting, which may include using ledges, cliffs, or even the nests of other birds. This behavior stems from their predatory nature and adaptations that prioritize efficiency and agility over nest construction.

Accipiters, buteos, and eagles are known for their stick nest-building behavior, often creating substantial nests in trees or on cliffs. These species have evolved to construct nests to provide shelter for their young and ensure a stable home base for hunting. In the case of true falcons, their strategy focuses on maximizing hunting efficiency, allowing them to occupy a variety of habitats without investing time and energy into building and maintaining nests.