What are the different groups of Mangy ans found in the northern parts of Mindanao?

In the northern parts of Mindanao, various groups of Mangyans can be found, primarily the Alangan, Iraya, and Bangon Mangyan. These groups are indigenous to the region and are known for their distinct cultural practices, languages, and traditional crafts. They inhabit mountainous areas and are often engaged in agriculture, hunting, and gathering. Each group maintains unique customs and lifestyles that reflect their connection to the land and their heritage.