Why do birds return to Poland from warm countries in spring instead of staying there for the whole year?
In the fall, many species of birds that live in our country fly away to warm countries in search of food. They come back to us in the spring. Why don’t they stay put and risk their lives on a long journey?
As spring and summer begin in Europe, there is a lot of food that is readily available. At this time, in Africa, where our birds often migrate (e.g. storks), the dry season begins. During it, access to food becomes very limited. Additionally, there is a lot of competition from other animals. It can also be assumed that birds come back to us for the same reason they fly away from us in the fall – in search of areas where there is a lot of food and where it is easily available.