【 winnowing island 】Island in [oomurawan] of Nagasaki Prefecture that exists almost in inside degree. It belongs to the Nagasaki Prefecture Omura city. It is known as an island with the Nagasaki airport of the seadrome of the world first. The resident moved for the seadrome construction in 1972 before though it was a manned island where a general resident lived. The airport began the construction of innings, cut through the mountainous district part, reclaimed, made the vicinity of the east coast, and was constructed.