This tradition may have come from the fact that the foxes are actually protecting the rice fields by eating the rodents. At the Inari shrines there are always two kitsune statues, guarding the entrance.
EXIF info:
Nikon Df
Lens: 24-70mm F/2.8G
Focal Length: 24mm
Aperture: F/4.5
Shutter Speed: 1/60s
ISO Sensitivity: ISO 3200