A class of unfriendly spirits, also called bal-bal. Among the Bagobo it is believed that they live in various parts of the mountains. One of them is named Bakay.
- Cole, Fay-Cooper. (1913). The Wild Tribes of Davao District, Mindanao. Chicago: Field Museum of Natural History, p. 138.
- Cole, Fay-Cooper. (1956). The Bukidnon of Mindanao. Fieldania: Anthropology, vol 46. Chicago: Chicago Natural Museum, p. 89.