Photo Essay 1: Two Common Gulls in Rhode Island: European/Russian (Larus canus canus/heinei) and Kamchatka (Larus canus kamtschatschensis) October 1, 2025 1 MIN READ Photo Essay To view the rest of the article you'll need to subscribe. Bird Observer publishes original articles on birding locations, on avian populations and natural history, on regional rarities, field notes, field records, photographs, and art work.