What type of hawk primarily preys on other birds?

The best choice for identifying a hawk that primarily preys on other birds is the Cooper's hawk. This species is known for its agility and speed, which it uses to hunt other birds in a variety of environments, often utilizing surprise and quick maneuvers to capture its prey. Cooper's hawks have a distinctive preference for avian prey, making them skilled hunters of songbirds and smaller birds.

While Red-tailed hawks are versatile in their diet and can also hunt mammals, they are not specialized bird hunters. The term "bird hawk" is not a specific species and can refer to various types of hawks that may include cooperation in their hunting strategies. Screech owls, on the other hand, are nocturnal hunters that primarily prey on small mammals and insects, not birds. Therefore, the Cooper's hawk stands out as the most accurate answer for a hawk that predominantly preys on other birds.