Traditionally, because of frequent typhoons and drought, they plant root crops able to cope with the environment. These crops include yam, sweet potato, taro, garlic, ginger, and onion, as they ensure higher chances of survival during awry climate conditions. The Ivatan study the behavior of animals, sky color, wind, and clouds to predict the weather. Ivatans usually gather their animals and stay in their houses when they see that the cows take shelter from the (communal pasture) and birds taking refuge in houses or in the ground. A pink sky with an orange hue also heralds a storm.