What is the average lifespan of seagull?

The average lifespan of a seagull varies by species, but most commonly, they live between 10 to 20 years in the wild. Some larger species, like the Western Gull, can live up to 30 years under ideal conditions. Factors such as habitat, availability of food, and predation can influence their lifespan. In urban environments, seagulls may face additional challenges that can affect their longevity.