Sharks
Sharks are the most deadly predators for seagulls of all the aquatic animals we will be talking about in this article. As carnivorous members of the Lamnidae family, sharks are already known to significantly rely on flesh for food. Additionally, it is well known that these fish are apex predators. So it should not be surprising that they can swallow whole birds at once.
Do you want to know how sharks capture gulls? Seagulls, as you may already be aware, flit about the ocean and beaches in search of food. The danger starts when they occasionally fly too near to the ocean's surface. When a shark spots a seagull, it dives deep into the water and snags the bird. But how could these large fish find a seagull in such a short amount of time?
Sharks, on the other hand, have surprisingly good eyesight and can see clearly at a distance of over 10-15 meters. They can therefore readily identify a seagull flying too close to the water's surface even from underwater and strike before the bird even realizes what struck it.
Anyone who has seen images of a shark will be aware of its enormous mouth, which is large enough to effortlessly engulf many birds at once. Consequently, when they attack a bird while opening their lips, the bird has little to no chance of escape.