Not sure where to post this, but I live where the clay concentration in the soil is very high. I know how to keep it at bay and break it down so I can actually have a yard, but part of that is using disintagrating sulfur in pellet form. A couple good waterings with sprinklers or rain storms and it's gone. It's 99.9% pure sulfur but if the birds get some of it in them will it hurt them? I have to dump about 200-300 lbs/ acre of the stuff almost every year, ain't river bottom grand, or my ground no sucky up water.