In 1986, Bigkay took part in the Mindanao Peoples Federation Assembly in response to threats of ethnocide. During the assembly, participants resolved to use "Lumad" as a unifying term referring to the 18 ethnolinguistic Indigenous peoples of Mindanao. Bigkay campaigned to preserve the Pantaron Mountain Range, which is home to one of the largest remaining
virgin forests in the
Philippines and has been a target for logging and mining operations. The range also supplies water to major rivers in
Mindanao, including the
Mindanao River,
Pulangi River,
Davao River,
Tagoloan River, and major tributaries of
Agusan River. In 1994, sought by tribal leader
Datu Guibang Apoga of the Talaingod Davao del Norte, she led the Manobo against intrusion by logging company Alcantara and Sons. She organized other female indigenous leaders, forming the Sabokahan to mo Lumad Kamalitanan (Confederation of Lumad Women), and helped expand the Salugpungan Ta Tanu Igkanugon Learning Center, which now runs 50 schools for indigenous children. Bigkay also helped create the national Indigenous peoples' organization Katribu Kalipunan ng Katutubong Mamamayan ng Pilipinas. == Awards and recognition ==