Which of the following birds is the largest?

The Jerkin, also known as Gyrkin or Gyrfalcon, is the largest bird among the options provided. Gyrfalcons can weigh anywhere from 2 to 4.5 kilograms (4.4 to 10 pounds), depending on the individual and the subspecies. They also have a wingspan that can exceed 1.5 meters (approximately 5 feet), making them impressive in both size and stature.

Their size advantage lies not only in their weight but also in their build, as they are robust and powerful birds, well-suited for their role as apex predators in their natural habitats. The Gyrfalcon is known for its ability to hunt a wide variety of prey, which is facilitated by its larger size compared to other falcon species.

In contrast, the other options listed are smaller species. The Jack Merlin (a small species of falcon), the Peregrine Falcon, and the Peregrine tiercel (the male of the Peregrine Falcon) are all smaller than the Jerkin, with the Peregrine, for example, typically weighing between 0.8 to 1.6 kilograms (1.8 to 3.5 pounds). The tiercel specifically refers to the