One of these is the diminutive island fox. Feral pigs played a pivotal role in the catastrophic decline of island foxes. Formerly rare or occasional visitors, golden eagles took up residence on the islands, sustained by the year-round supply of piglets. Golden eagles predation placed the island fox on the brink of extinction. Feral pigs also destroyed native vegetation, cause widespread erosion, threaten rare plants, and disturbed archeological sites.