Old school. LMAO! That was high tech in my days. We had loose hay loaders , and put loose hay in the barn in my young days. The Dad got a New Holland engine mounted baler, what heavy beast that was. Then in 1960'S got a new New Holland baler with thrower, now that was top shelf for us. Great video Sakoshortmag, thanks for sharing.
Would guess that is where the sprinkler lines are buried and the sprinkler heads are up out of the ground. That’s the way my fields look, and for that reason, tho I cut the hay between each sprinkler head. Depending on what equipment used to cut the hay, it maybe too difficult to cut between the sprinklers.