This one's gonna be a different story. Many of you know I've been burning close to 50 years now. And for 50 years I've been dealing with the same problem, "BIRD $#!T". Ok, now that I've got your attention, I load 6 cord of dry seasoned wood in my burn shed every year, and every year a few hundred house sparrows make nests among the wood and roost in the shed during the winter and SH!T all over the wood. I've tried, (Fake snakes, aluminum foil strips, Plastic Owls and Hawks, noise, lights, moth balls, and nearly everything else you can think of except shooting them! I can't (really) enclose it and it seems like a trivial issue but come winter I can fill a gallon paint can just from the sh!t I sweep off the top logs and it's all over the Inside. Anyone got any other Ideas? I've been dealing with it for this long. I'm willing to try something/anything else to keep them off the wood! Dave.
Anything that is on the wood in my shed gets banged off when I go to bring it into the house. I don't really pay much attention to what may be on the wood. I have a dirt floor in my pole barn so I don't care what falls on it. If the bird crap sticks, It should be dry enough to burn.
Unfortunately it's engrained generationally in those birds that your shed is home. Guy I work for had the same problem. Ain't a thing gonna scare them off. You gotta evict em. He put up hardware cloth everywhere he could see and then still had a couple spots after the birds got back in.
We used to have a mouse problem in our garage and sheds. We've had 3 cats for 2 years now, Mousetache and his sisters Mini-Mousetache and Sox. I haven't set a mouse trap since we adopted them.