What do you think are causing these divots all over my lawn?

https://www.youtube.com/watch?v=Rf-nwKYXZhY

do you have deer nearby? could be hoof prints in soft earth

A flock of crows made holes like this in my front yard.

Armadillos

It could be Cicadas. If you are hearing a lot of whirring noise in the evening, they just crawled out of your lawn.

Skunks digging up grubs perhaps.

Could be squirrels digging up their nuts.. Chipmunks maybe?

If it is moles or other vermin infestation, pour a bit of gas in the hole, the fumes will penetrate the tunnels. Light a match. Even if not, the fumes and fire will make any other vermin stay away.

Armadillos or skunks are something I would vote for. I have the same type of holes in my yard, Armadillos come during darkness looking for grubs, they have very sensitive sense of smell and can go right to their favorite food. The only way I have been able to get rid of them is sit a trap, when you catch one you have two choices, shoot it or carry it into the forest a good distance away from your property and release it. Take you pick, at any rate they are difficult to get rid of.

looks like holes in my yard, very wet from rain, hubby said it was crawdads,neighbors found them too..

Moles, voles put garlic in the holes. You will begin to notice them making tunnels and moving around. Treat your yard for grubs, that is what they are after.

I concur with the grub responses

I use coyote urine I bought. it comes in a spray and I just spray the holes

Could be skunks. Found similar holes in my yard after watching 4 of them digging around. Also, could be after grubs.

Armadillo for sure!

Armadillo's are the likely culprit.

Moles do that in my area

We had a similar problem. It turned out to be skunks and raccoons digging for grubs. You need to check your lawn for areas where grass pulls away easily or looks like its drying out. This is because grubs eat the roots of grass. Your local garden center, Home Depot or Lowe's will have a grub killer you can use to kill them off.

Squirrels do this to our yard. No Amadillos in Northern Illinois.

My dog does this digging for grubs.

Do you have squirrels? "My" squirrels do this all the time. I've watched them very neatly bury their nuts, pulling the sod back over their treasure and patting it down with their little hands so you can't even see the evidence. Oh but when it comes time to dig them back up it's another story... the little suckers just go to town like fiendish little puppies, leaving me with little divots all over the place!

Small divots are made by corvids looking for worms and grubs. This is in England in the autumn.