The animals which more away temporarily to tide over the unfavourable stressful environmental conditions of a habitat to a more favourable area and return to their original habitat when the stressful conditions are over are called Migratory animals.
- Siberian Cranes migrate to the Keoladeo Ghana National Park in Bharatpur, Rajasthan during winter and fly back to Siberia with the onset of summer.
- The Arctic tern (Sterna paradisaea) migrates from the Arctic region (in summer) to Antarctica in autumn and returns to the north pole during spring.
- Mammals like Whales, Caribou, Reindeer, Elks migrate to warmer places during winter in search of food.
- The Gray Whales migrates from the Arctic ocean to the Lagoons for breeding.