horse excrements close up shot on lifeless grass

animal background bio biogas bright brown close closeup concept crap day dirt dirty disgusting droppings dump dung energy environment excrement excrements faeces fecal feces fertilization fertilizer fly gas grass green horse lifeless manure methane natural nature nitrogen outdoor outdoors outside pile plant pony poo poop refuse rubbish shit shot smell stink stool sunny toilet unhygienic waste white