Ring-Billed Gull (Larus delawarensis) lives in near lakes, rivers, or coast across North America. It feeds on insects and fish. Its conservation status is Least Concern.
Fascinating facts about the Ring-Billed Gull
- The oldest known ring-billed gull was still alive in Cleveland in 2021 at the remarkable age of 28 years, far exceeding the typical adult expectancy of just under 11 years. This individual survived well beyond the average lifespan of 10.9 years recorded for adults that reach maturity. Its longevity demonstrates that, while most birds die much younger, some can persist for decades under favourable conditions.
- Around 1990 the ring-billed gull was the most common gull in eastern North America, with an estimated 875,000 breeding pairs in the region (about 1.75 million adults, not counting non-breeding juveniles or western populations). Since that peak, the number of breeding pairs has slowly declined, reflecting changes in management of landfill feeding sites.
- Ring-billed gulls traditionally build their nests on the ground, favouring islands and other low-lying sites, but in recent decades they have increasingly chosen flat factory roofs as nesting platforms. They tend to be faithful to a particular nesting location, often returning to the same roof or ground site year after year even if their mate changes. This adaptability allows them to exploit urban environments where suitable ground sites may be scarce.
- The ring-billed gull was once a regular winter visitor to Britain, with an average of 77 individuals recorded each year in the 1990s. Numbers then dropped to about 16 per year during the 2010s and fell further to just six per year between 2020 and 2022. At that low rate the species would be re-classified as a rarity if the trend persisted for a decade.
Sources
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At a glance
RangeNorth America
HabitatNear lakes, rivers, or coast
DietInsects and fish
About the Ring-Billed Gull
As the sun rises over the shoreline, a flock of Ring-Billed Gulls takes to the sky, their snowy-white bodies and grey wings beating in unison as they soar effortlessly on the updrafts of warm air. With eyes ever-vigilant for the telltale signs of food, they scan the waves below, their sharp cries punctuating the morning air as they swoop and dive with precision, their agility and cunning making them a formidable presence in the coastal ecosystem. In their graceful, fluid movements, we see a masterclass in adaptability and resilience, a testament to the enduring spirit of these charismatic birds.
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