Other vertebrates found within the region include common native woodland bird species such as Robins, Sparrows, Rosellas, Fantails, Currawongs and Honeyeaters; as well as six species of frog and several variants of skink. The Alpine she oak Skink is on the endangered species list due to the severe fires in the region over the past decades. The Baw Baw frog is critically endangered with estimated number being below 1,000, the major threat to this species is a disease from the fungus Amphibian Chytrid called Chytridiomycosis. Mountain streams are also populated by species of small fish such as the Mountain Galaxia. There is very limited fauna diversity within the Victorian alps, due to the climate, and exposed conditions.