Originally Posted by RigglePLC
Have you considered snowmold? Brown areas are rather random. And unaffected grass clumps are doing fine. Is the problem under deep snow?
Round pellets could be the fruit or seed of some kind of tree. Cut them open. Smell them. Put out a couple mouse traps.
Pretty sure its not snow mold, I know what that looks like and I have it in some areas. This is thinning grass that getts chewed, you can see the ragged edges of the blades from whatever is chewing them. I examined the small round droppings, they aren't seeds. I can split them right in half with finger or crush them. They look like they are chocolate all the way through.
Ill figure it out sooner or later.
Had the same problem last year.