I think these little birds are Swallows. For years they've built mud nests in the corners of my front porch. Nothing I've done has deterred them. We're remodeling the front porch with new pillars, paint and porcelain tile. I just can't let them ruin the eaves with their sloppy muddy nests and the floor with bird poop :( I used to spray the nests down as they were building them but they'd win out every time. They do NOT give up :o Tried putting a rubber snake up there. They laughed! Any tried and true techniques for discouraging them building on my porch?