Just found this on Wiki
Seagull, seagull sit on the sand.
It's never good weather when you're on land.
Seagulls tend to sleep on the water. However, seagulls, like people, find gusty, turbulent wind difficult to contend with, and under such circumstances, the water is also choppy and unpleasant. Seagulls huddled on the ground may be a sign that the weather is already bad.