Key Identification Features
- Identifying this jaeger is difficult because it closely resembles the parasitic jaeger, and it occurs in three distinct plumage morphs.
- All three morphs have the characteristic white wing flash, which appears as a distinctive double flash on the underwing.
- The Chilean skua, Stercorarius chilensis Bonaparte, 1857, has distinct physical characteristics for adults.
- All adults have a distinctive dark cap, plus prominent pale gold streaking on the face and neck.
For instant identification in the field, use the iNature app — AI-powered, works offline.
