United Kingdom 
These are identical to the many holes in our lawn.we are on clay and we have dozens of these holes and have no idea what is making them. Help please.
2 Nov, 2016
Answers
Now we know how many holes there are in Blackburn,Lancashire.
2 Nov, 2016
I wonder if they are worm burrows? a photo would be good.
2 Nov, 2016
They could be holes left by birds beaks as they try to catch the various grubs that live there. Often happens.
3 Nov, 2016
Badgers looking for food left holes in my lawn.
3 Nov, 2016
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