Spreading something

This guy was going up and down the field opposite my house for most of the morning with a cloud of dust coming out of the back of his trailer. Over the last few days very large lorries have been delivering "stuff" into the field. I spoke to the driver of the first of the trucks to arrive and he was not sure what he was transporting, it was either turkey poo or chicken poo. He hoped it was the latter as it smells a bit less. 
Since I had no idea what this was being put onto the field I stayed well clear, this shot was taken with the lens zoomed out as far as possible and the resulting picture cropped a lot
Fortunately today it has rained quite a bit so we have not suffered from dust, smells or worst of all, flies. Hopefully by the time the sun starts shining again all the "stuff" will be washed into the ground