Searchlights in fields

[dal]

Hi all, over the last month or so I've noticed quite often there are pickups driving around in various fields with searchlights on the light beam sweeping across the fields, sometimes these lights are red as well. Whats all that about !!!!

 

[dal]

I might stop and ask them next time I see them, then I'll report back here.

 

[dal]

Cheers, You learn somthing new everyday.