Miyakoan language

The Miyakoan language (宮古口/ミャークフツ "Myākufutsu/Myākufutsї" ] or 島口/スマフツ "Sumafutsu/Sїmafutsї") is a Ryukyuan language spoken in the Miyako Islands of Okinawa Prefecture, Japan.
As most of its speakers are over the age of 60, it's assumed that Miyako has anywhere between 10,000-15,000 speakers.