Why does the red dragonfly drip? What weather does it have to do with?

Hello, I'm asking why the red dragonfly can fly. Is it related to what weather? The reason why the red dragonfly will drip and fly is

1, the red dragonfly will come out to hunt after the rain, and the raindrops in the air will drop with the wings of the red dragonfly.

2, it will drip. This is related to the weather after the rain. Because it is after the rain, the relative humidity of the air is high, and some very small flying insects are wet and can't fly high, so the red dragonfly will come out to catch insects and fly close to the ground.