When the swallows leave for the south

When the swallows leave for the south Gencho leaves; Tsubamesaru One of the Seventy-Two Descendants (Last Descendant of Shiratsuyu. Around September 17th to September 21st). The term refers to the time when the swallows that arrive in early spring finish raising their young and depart for warmer southern regions. It is said that they travel several thousand kilometers to their wintering destinations in Southeast Asia and Australia, sometimes traveling 300 kilometers a day.