October 2025https://www.birdobserver.org/Issues/2025/October-2025Photo Essay 1: Two Common Gulls in Rhode Island: European/Russian (Larus canus canus/heinei) and Kamchatka (Larus canus kamtschatschensis)https://www.birdobserver.org/Issues/2025/October-2025/photo-essay-1-two-common-gulls-in-rhode-island-european-russian-larus-canus-canusheinei-kamchatka-larus-canus-kamtschatschensisPhoto EssayWed, 01 Oct 2025 00:00:11 GMTTo 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. Photo Essay 2: Common Gull (Kamchatka) (Larus canus kamtschatschensis) and Short-billed Gull (Larus brachyrhynchus) in Massachusettshttps://www.birdobserver.org/Issues/2025/October-2025/photo-essay-2-common-gull-kamchatka-larus-canus-kamtschatschensis-and-short-billed-gull-larus-brachyrhynchus-in-massachusettsPhoto EssayWed, 01 Oct 2025 00:00:09 GMT<p class="caption"><img alt="Common Gull (Kamchatka) (Larus canus kamtschatschensis) at Low Beach, Nantucket; December 30, 2023. Photograph by Jeremiah Trimble. Unlike most Kamchatka Gulls, SconsetKam shows a single mirror on p10 only." src="/Portals/0/Assets/bo53-5/613091067.jpg?ver=zvQegrtOxXusKMLcLNu0gQ%3d%3d" /><br /> Common Gull (Kamchatka) (<em>Larus canus kamtschatschensis</em>) at Low Beach, Nantucket; December 30, 2023. Photograph by Jeremiah Trimble. Unlike most Kamchatka Gulls, SconsetKam shows a single mirror on p10 only. <a href="https://macaulaylibrary.org/asset/613091067"><span>https://macaulaylibrary.org/asset/613091067</span></a></p> <p class="caption"><img alt="Common Gull (Kamchatka) (Larus canus kamtschatschensis) at King’s Beach, Lynn; February 19, 2018. Photograph by Marshall J. Iliff. Old Reliable shows two large mirrors—and a small one on p8 in some years—and 11 primaries in the right wing." src="/Portals/0/Assets/bo53-5/86745031_(1).jpg?ver=G5pLy5OwzMwp-szTZyE4iA%3d%3d" /><br /> Common Gull (Kamchatka) (<em>Larus canus kamtschatschensis</em>) at King’s Beach, Lynn; February 19, 2018. Photograph by Marshall J. Iliff. Old Reliable shows two large mirrors—and a small one on p8 in some years—and 11 primaries in the right wing. <a href="https://macaulaylibrary.org/asset/86745031"><span>https://macaulaylibrary.org/asset/86745031</span></a></p> 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.