From this proverb, I think of another proverb that uses birds to predict the weather?

Explanation: When heavy rain comes in the future, the air pressure will decrease, and swallows and snakes are very sensitive to low air pressure. At this time, the flying height of swallows will be reduced, and snakes want to return to their nests before the rainstorm, so if these two situations occur, it will indicate the future of shanghai dawn.

2. Swallows fly low and go out with hemp fiber.

Explanation: When the air pressure decreases before it rains, the flying height of swallows will also decrease. Hemp fiber is the ancient name for raincoats, which means that it is going to rain, so we should prepare in advance.

3. Swallows fly low in the snake aisle, and water tanks wear skirts and hats.

Explanation: Swallows fly low, snakes are in a hurry to go home, and a layer of water drops will condense outside the water tank below the horizontal line in the water tank. The mountain peak is covered with clouds like wearing a hat, indicating that water molecules in the air condense under pressure due to the decrease of air pressure, which indicates that it is going to rain.

Swallows fly low and dogs eat grass. This heavy rain is not small.

Explanation: Swallows fly low and dogs eat grass, which indicates that the coming rain will be heavy, which is mostly related to the reduction of air pressure.

Swallows fly low in the snake aisle, and it will rain when ants move. ?

Explanation: the first half of the sentence said that the two animals had some abnormal reactions because of the decrease of air pressure; The last sentence means that ants are also sensitive to rain and need to act in advance to prevent rain from washing away their nests.