Why do seagulls swarm?

Food source availability: Seagulls are opportunistic feeders and will often swarm around areas where food is abundant. This could be due to a variety of reasons, such as a fishing boat discarding its catch, a restaurant throwing away food scraps, or a natural food source, such as a school of fish or a colony of insects.

Breeding and territorial behavior: Seagulls may also swarm during the breeding season to defend their nests and territories from other birds or predators. This is especially common among certain species, such as the herring gull, which is known for its aggressive behavior during nesting season.

Communication: Swarming can also be a form of communication among seagulls. By gathering in large groups, they can exchange information about food sources, potential threats, or other important matters. This behavior is often observed when a new food source is discovered or when a predator is spotted.

Safety in numbers: Swarming can also provide seagulls with a sense of safety and protection from predators. By being part of a large group, they can reduce their individual risk of being targeted by a predator. This behavior is particularly common among smaller species of seagulls, which are more vulnerable to predation.