Every winter, when southward migrating birds fly over the land of England, many bird lovers throw seeds and oats in the courtyard, hoping to help the birds get enough energy. But this has led 10% of black-roofed warblers to change their traditional migration route, flying from southern Germany and Austria to Spain in the southwest to Britain in the northwest, where they rely on bird lovers to survive.
passage?
Humans can help birds through their own behavior