Whether you parked your car under a very active tree and it's now covered in bird droppings or a stray pigeon, robin or blue jay has left you one or two surprises, those tell-tale white splotches can ...

Q: I recently had a flagstone patio installed in my backyard. I love the patio, but I also love having my bird feeder, so the flagstones are covered with bird poop. I routinely take down the feeder at ...