Small Deep Round Holes In Lawn

[Christianne]

Whilst mowing the grass today, I noticed a reasonably large number of small deep holes in the lawn, some quite close together. I have never seen them before, so would appreciate any advise on what is causing them, and more importantly, how I can get rid of whatever it is that might be causing them. Many thanks in advance for any help.

[Chipchopper]

If there is no evidence of excavated soil on the surface (molehills) in the locality or close by, then I doubt its moles.

[hc4361]

Could be ants nests.

[murraymints]

Squirrels ??

[Quoi]

My guess would be a bank vole. Grey and mouse sized but with shorter tail. See them all the time on the allotment and compost heap and in the grass.
If you lay a sheet of board or black plastic over the holes for a few days - you may see one if you lift the covering quickly.

[murraymints]

https://www.google.co.uk/search?q=squirrel+damage+to+lawn&tbm=isch&tbo=u&;source=univ&sa=X&ved=0ahUKEwjY1L_ot7rUAhWqKcAKHZFUBakQsAQIJw&biw=935&bih=401&dpr=1.25

[youngmafbog]

Correct DB, moth balls and Garlic is the solution isn't it?

I'd guess something other than moles though, molehills are usually pretty identifiable. Mice or rats most like.