Could be a variety of critters - armadillos, skunks, possums, raccoons are all possibilities as they feed on grubs (among other things) that live in the soil surrounding grass and plant roots. And don't be surprised at how far they might travel for their evening buffets. They have quite possibly set up housekeeping in a neighbor's yard. Most of these are creatures that have readily adapted to human populations and do not need large tracts of undeveloped land to thrive. They can often be found in the middle of cities!

Where do you live?

Any one keep chickens near you? Chickens scratch and dig in flower beds.

Our neighbor lets his chickens out to range free over the yards. We are starting to have problems in some of our flower beds where they dig out the much. We live in the middle of a rural housing division of about 250 house.

Some areas have passed laws allowing chickens.

In my neck of the woods squirrels are digging holes in my lawn as they do every Fall. They get rather desperate this time of year, poor dears.