Today, the mountain and the area around Joske's Thumb are known as a habitat for many species of birds. Among the species that live near Joske's Thumb are many birds that are endemic to Fiji, including the masked shining parrot, the giant forest honeyeater, and the pink-billed parrotfinch, although parrotfinch sightings have declined significantly since the area was logged in the early 1980s. Joske's Thumb is also a historical nesting site for Falco peregrinus nesiotes, Fiji's endemic peregrine falcon.