My father got so frustrated last year he took a leaf blower and a can of raid. It didnt get up 70' but he said it sure was raining dead cats'. Dont imagine it was to healthy for him either. This year he hired some company to do it. They used a truck with a preasure hose. It seems to have held them off somewhat so far. They are working on the oaks here. Maybe when they have finished off those they will move on to the dandylions, poison ivy and other asorted leaves.
Just bought some Soft Scrub w/bleach. Will give it a try tomorrow.
I am going to try this on-off stuff I hear you guys talk about. I had my boat in the boatyard for a while and some it had some VERY serious bird crap(cormorants I think) all over the boat. It dried and I had my son hit it with a hose and water and boat soap. Well it turnned EVERYTHING it touched BLACK. Like ink. I was in the glass I tried everything (and a full day of scrubbing) I had and got some of it off but it is still grey in places. I am hoping it wears off. That was the worst stuff I have ever seen on glass.
Sandy,
I don't think you'll be disappointed with the On & off. For the bird poop I would soak it with water before hitting it with O&F. Put some rags or something over it to hold the water on for an hour or so, then remove the rags and use the O&F.