Vertebrates - Racoon, Skunk
Mephitidae spp, Procyon lotor
Raccoons (Image A) and Skunks (Image B) move onto the area after dark and dig through the turf. They can cause damage anytime the turf is not covered with snow.
Notes: Insecticide applications for grub control may work to stop damage in the future, but it is not an immediate solution as insecticides for grubs take time to work and the curative compounds do not provide 100% control.