Somethings Poop.
It looks like earthworm castings (a nice way of saying earthworm poop). If you google them you can find a picture of them.
I live in the North and we have been getting a ton of rain lately so I am willing to bet it is from worms or maybe grubs??To answer a few questions......
Nope its not fungus. Doesnt have that poofy dust when you step on it and that usually looks like cat barf.I live in the North and we have been getting a ton of rain lately so I am willing to bet it is from worms or maybe grubs??

It looks like earthworm castings (a nice way of saying earthworm poop). If you google them you can find a picture of them.