Gyrfalcons are the largest falcons in the world, with a wingspan of almost four feet and weighing almost five pounds. The name “Gyrfalcon” derives from an Old Norse word for “spear.” During the summer, you’ll find Gyrfalcons on the tundra, where they feed on arctic birds. But in the winter, some will fly as far south as the northern U.S.More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.