 However, another Barossa winery, Langmeil, and a Victoria winery, Tahbilk, also claim to have vines just as old, or even older than Turkey Flat.Founded by Johann Frederick August Fiedler who planted Shiraz on the property, Turkey Flat was also a dairy farm as well as a butchery for several generations.It was named Turkey Flat because of the flocks of Australian Bustard that lived along the creek flats.