Robins are warm-blooded creatures known for migrating south during the winter to make it easier to locate a source of food. But you might still wake up one winter morning and hear the sweet song of the robin outside your window. Wonder why? It’s because not all robins migrate during the winter.
Between five to twenty percent of robins stay north in states like Wisconsin. Insects, robin's regular source of food, become scarce with the freezing ground, so they have to find a new source, like berries. Even though berries don’t grow in vast amounts like they would in the summer, there are still enough that the robins can use them as a source of food. When robins go to find food, they search in flocks so that when one of them finds something to eat, they all get something to eat.
There are many other ways robins survive in the wild during the brutal winters of the North. They perch in places like bushes, ledges of buildings and trees so that their wings do not get wet and make it dangerous for them to fly, making them easy prey for predators. They also fluff up their feathers to keep the cold air out and the warm heat in. The robins eat two or three times as much to make sure that if they were to fly into a blizzard, they wouldn't starve. They never know when they will find their next patch of berries.
The life of a robin living in the North during winter is not easy. But you can help! Leave out birdseed for birds who are looking for food. That is if the pesky squirrels don’t get there first!