Feeding birds is in winter isn't only a nice way to make their life a little easier, it also offers a "unique opportunity for experiencing nature and learning about the environment," says the German Nature and Biodiversity Conservation Union (NABU). "The birds can be watched closely at feeding stations. Feeding is not simply an experience, but also teaches people about the species." Well then. If you're ready to get into the game, there's no need to buy a bird feeder. Instead, you can recycle a