Does it have anything to do with the weather when you see swallows flying low in groups in the afternoon or evening?

Whenever I see swallows flying low in groups in the afternoon or evening, flying lower and lower, or gliding rapidly against the ground, or flapping their wings in the air, the experienced old farmer says, "Swallows are flying low, it's going to rain."

Why does it rain when swallows fly low?

Because all kinds of insects are the best food for swallows. Before the rain, due to the rapid increase of water vapor in the air, most insects' wings are wet, so they can't spread their wings freely and fly high, but generally just fly low. At the same time, some insects living in the soil have climbed out of the soil to breathe air, which is a good opportunity for swallows to catch, so swallows should fly low to catch. In addition, before the rain, the airflow was chaotic, and the swallows could not get the right wind to fly. In flight, they have to rise and fall, rise and fall again, skim the water and cut the waves, and turn around.

Therefore, the swallow flying low is a sign of rain. ? If swallows are found to be out hunting and grabbing grass early before sunrise, they are always busy going in and out and wearing them, which indicates that there will be a continuous rainy weather in the future. ? Sometimes you can see swallows diving into the water, flapping their wings and flying again. After a while, they did it again and again. People call it "bathing", which is also a sign of rainy weather in the future. In spring and autumn, if swallows "bathe" for three consecutive days, there will be rainy weather for more than three days in the future.

In summer, swallows can be seen "bathing" in the morning, and there are usually showers or thunderstorms around noon. If swallows "bathe" on the water in the afternoon, there will usually be thunderstorms at night or the next day. If Yan Yu is found taking a bath just after the rain stops, it indicates that the weather will not clear up in the future. However, in the Millennium solar terms, swallows flew noisily on the wires around sunrise, and their eyebrows flew into the water to "take a bath" before noon. This phenomenon indicates that the weather will be less rainy, sunny and hot in the future, which is what the masses call autumn weather, and in some places it is also called "autumn tiger".