The ruddy duck is a species of duck, one of six extant species of stiff-tailed duck. In the 1940s, the ruddy duck was introduced to the United Kingdom, where it established a population. Outside the Americas, the ruddy duck is considered a highly invasive species, prompting many countries to initiate culling projects to eradicate it from the native ecosystem.

This Ruddy Duck was photographed at Huntington Beach, CA on January 6, 2026. View all Ruddy Duck photos →