It isn't true that hungry students have hunted down basking ducks in the city park Byparken in their spring fervour, as rumours may have it. But, it is not unusual to see students throw themselves over the park's wild birds, and hold on to them tight. They ring the birds. Because of this, we know quite a lot about the birds in Byparken.
Freezing and thawing are processes that influence plant cover, move enormous blocks, stretche long mounds of earth, break open bedrock and create patterns in stone and earth.