Each year we clean off where they nested last time and put wood blocks or nails or something to encourage them to go else where. We have about 10 acres of trees. They are not limited to our barn! But my brother was right and each year we get more and more. Once again my main complaint is the mess.
I LIKE hearing them whistle when I get to the barn in the morning. I am amused by their antics as they fly out of the barn and try to lure me away from their young. I am grossed out by the droppings EVERYWHERE.
And then I'll have to talk Lee into using the pressure washer next time they leave. No point in it now. This is from just a few days