(n.) One of several species and varieties of large Arctic falcons, especially Falco rusticolus and the white species F. Islandicus, both of which are circumpolar. The black and the gray are varieties of the former. See Illust. of Accipiter.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). gyrfalcon. Retrieved September 23, 2026, from http://smartdefine.org/gyrfalcon/definitions/2014402 |
| Chicago | Webster's. 2011. "gyrfalcon" http://smartdefine.org/gyrfalcon/definitions/2014402 (accessed September 23, 2026). |
| Harvard | Webster's 2011, gyrfalcon, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/gyrfalcon/definitions/2014402>. |
| MLA | Webster's. "gyrfalcon" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/gyrfalcon/definitions/2014402> |