Categories DavidPendeford Mill Open Day, May 2015, Vole central Post author By David Post date 10 May 2015 Series of round holes in the bank of the River Penk opposite the reserve, just the right size to form a retreat for some water voles. ← Pendeford Mill Open Day, May 2015, Heron’s nest → Pendeford Mill Open Day, May 2015, Bluebells