What methods are there to predict the weather?

In addition to the weather forecast, we can also understand the climate by the following methods: sparrows can't fly far, always fly down, sometimes fly high, sometimes fly fast, and it will rain after 30 minutes to 1 hour. Cattle and sheep grazing in the wild don't go home when it is late. They always bend their heads and eat hard, and it will rain the next day. Frog is an animal that sings with vocal cords. It makes sound by opening and closing two small bubbles on both sides of the head. If it is sunny, because the temperature is moderate and the air pressure is normal, the frog's cry is melodious and rhythmic; If the temperature rises when the heavy rain comes, and the temperature rises, making it difficult for the frog's vocal cords to make sounds, the frog will make irregular calls. Ants migrate to high places in the forest. There will be heavy rain in three days. "When the ants move, the flood will come." "The ants are dry, and it rains cats and dogs." "Ants were running all over the ground, and the weather was fine that day." Dragonflies, butterflies, bees, wasps, moths and other flying insects, if they are in a hurry during the flight, will fly east and west and flap their wings quickly, so it will rain in about an hour or two.