Why seagulls fly close to the sea shows that the weather will be fine in the future.

If seagulls fly close to the sea, the weather will be fine in the future; If they wander along the seaside, the weather will get worse gradually. If seagulls leave the water and fly high, flying from the sea to the seaside in droves, or flocks of seagulls gather on the beach or in cracks in rocks, this indicates that a storm is coming.

Seagulls can foresee storms because their bones are hollow and tubular, and they are filled with air without bone marrow. This is not only convenient for flying, but also like a barometer, which can predict the weather changes in time. In addition, the hollow feather tubes on seagulls' wings can feel the change of air pressure sensitively, just like a small barometer.

Therefore, seagulls fly close to the sea, indicating that they are playing and preying normally, while wandering by the sea, indicating that a storm is coming, because the air pressure changes greatly, and the arrival of the storm is not suitable for their normal preying, threatening their safety.

It's like a fisherman fishing in good weather and going home in bad weather.