Animal species include fruit bats such as the Samoa flying-fox ("Pteropus samoensis"), land and seabirds, skinks and geckos. The birdlife of Samoa includes a total of 82 species, of which 11 are endemic, found only in Samoa. Endemic birdlife found only on Savaii include species such as the Samoan white-eye ("Zosterops samoensis") which is only found in the high cloud forests and alpine scrub around Mt Silisili, and Samoan moorhen ("Gallinula pacifica"), which was last recorded in 1873 near Aopo with possible sightings in 1984 and 2003. The tooth-billed pigeon, ("Didunculus strigirostris"), also known as "the manumea" is also endemic and now increasingly rare, leading to the current proposition to upgrade it to critically endangered. It is the national bird of Samoa and is found on some of the local currency. It is likely that the extensive loss of lowland forest, hunting and invasive species are responsible for the decline of this stunning species.