Key Identification Features
- Heermann's gull, scientific name Larus heermanni Cassin, 1852, has a distinct appearance that sets it apart from other gull species.
- Adult breeding plumage makes this a distinctive white gull, with a very pale grey mantle and wings that have white primary feathers lacking black tips.
- Its solid black hood extends down the nape and features clear white eye crescents.
For instant identification in the field, use the iNature app — AI-powered, works offline.