What is "valdarnese"

The Valdarnese, also referred to as Valdarnese Bianca, Valdarno Bianca or Pollo del Valdarno, is a breed of large white chicken from the upper Valdarno, the valley of the Arno river, in Tuscany, central Italy. It became virtually extinct in the 20th century, but the population is recovering. It is a different breed from the Valdarno chicken, which originates in the lower part of the Valdarno, and is black.