 Immediately below the female peak is a band of mossy elfin forest and, below that, oak-laurel forest.A 1998 expedition by members of the Miri branch of the Malaysian Nature Society recorded 67 species of bird, including helmeted hornbill, and 20 species of mammal, including Bornean gibbon and sun bear, in the forest that surrounds Batu Lawi, but the only birds recorded from the summit of Batu Lawi itself were ochraceous bulbul and mountain blackeye.In 1946, Tom Harrisson saw a peregrine falcon on the male peak.