Mice and rats suffer from a bad reputation. That is due particularely to the fact that they like to live where people live. They eat everything, reproduce often and have big nests. However, mice and rats are the most important source of food for owls, raptors and land predators. On the Wadden Islands, you find wood mice, harvest mice and brown rats, and occasionally house mice. Wood mice take over the role of house mice when there are no house mice.