Tractor made of haystacks

Wink of a strong advocate of ecoagriculture. Would it be a new technology to reduce the impact of intensive agriculture on wildlife and their habitat? In any case, this tractor located on the edges of an expressway didn't leave no one indifferent. Most of the drivers slowed down the time to glance at the odd vehicle. Apparently, it was more efficient than speed bumps! 

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