Mystery holes in lawn

[Prof]

Hi Garden Gurus,

Some mystery holes recently appeared on my front lawn which I have never seen before and I'm stumped as to what has caused them...

There are about 20 holes randomly spaced across the lawn...

They are about 4" in diam ( not even..obviously dug by an animals feet) and only about 4" or 5" deep..

Anyone have any idea what might be doing this?

I live on a hill overlooking the River Murray.

[AlanM52]

Hello Prof,

Setup a wi-fi camera.

Cheers