England - Hay, but Not Stacked, in Grasmere

You don't have to go far outside of Houston to see big round bales of hay out in the fields, harvested in the fall.  Because of this, fall is one of my favorite times of the year, as the smell of the newly-mown grass wafts through the air, especially in the morning before there's much wind.  One of my favorite memories of Nacogdoches is walking outside of my little country cottage on a fall morning to be greeting by this fragrance, enhanced by the wet still air.

So naturally I was curious to see these things in England, bales shrouded entirely in black plastic.  Since it's fairly humid there, wondered if it doesn't promote the growth of mold, etc.