What's going on

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Sadly, Google Maps does not update the images of the area pretty often (it looks like we're in a forest), but as you can see from the video below it quite changed its appearance:



So, what's the Cat doing? It's sticking into the ground the poles that are going to support the young trees in their first years, until they manage to stay in place by their own means (just like with little kids...)
The poles are being placed in holes previously dug by the very Cat you're seeing, filled with a mix of organic fertilizer and soil (a little present to the new inhabitants, until they root themselves properly!).