What do thousands of birds fly in the sky?

Thousands of birds flying in the sky may mean many things, depending on the specific situation and region. Here are some possible explanations:

1. Migration: In autumn, many birds begin to migrate in order to find more suitable climate and food resources. If there are thousands of birds flying in the sky, it may be a migratory scene.

2. Breeding: Spring is the season for birds to breed, and the flight of thousands of birds in the sky may indicate the arrival of spring.

3. Weather change: In some areas, if thousands of birds gather together and fly low, it may be a sign of rain.

4. Ecological disaster: If the ecosystem of a certain area is destroyed, it may cause a large number of birds in this area to die, resulting in thousands of birds flying in the sky.

5. Impact of human activities: For example, human activities may destroy the habitats of birds, causing them to look for new habitats, or human activities may disrupt the normal life of birds and cause them to fly in panic.

In a word, thousands of birds flying in the sky may express various meanings and need to be judged according to specific circumstances. At the same time, we should also pay attention to protecting the ecological environment and reducing the impact on bird life.