If you study the birds in the sky and other animals, we will notice that they often appear only some times in the year, or they might disappear for a long period and come back later. This process is called migration, and birds often do it. When the weather changes, birds migrate to warmer climates and then come back later. Show your kids the animals in this worksheet. Can they identify them? Now, help them decide which of the animals migrate, and then check the boxes.