The Philippine Eagle. Sometimes referred to as the Monkey-Eating Eagle, this is the largest eagle in the Philippines and regarded as the largest in the world. It stands approximately a meter tall. Its wingspan is around two meters. This eagle is native only to the islands of Luzon, Samar, Leyte, and Mindanao. Because of the eagle's extreme elusiveness, its existence was documented only in 1986. It is an endangered species that is now being bred in captivity. The first eaglet bred in captivity was named 'Pag-asa' or 'Hope.'