The Guadalupe Caracara (Polyborus lutosus) is an extinct member of the raptor family of birds. It inhabited Mexico's Guadalupe Island until the beginning of the 20th century. Specimens are available for display in Chicago, Washington, and London. The Crested Caracara is commonly incorrectly referred to as a Guadalupe Caracara.
It was described as evil and vicious by early observers. It likely preyed on goats, and was driven to extinction by a hunting and poisoning campaign led by goatherders on Guadalupe Island. The last living specimen was recorded shot on 1 December 1901 by collector Rollo Beck.