If I obstruct the hens' view of the rest of the yard by enclosing the run in a non-see-through material, will they stop freaking out about the raccoons that visit daily? My chicken run is enclosed chain link (including on the top) which keeps raccoons and hawks out, but they get all squawky and stressed when they see a raccoon in the yard, and then they are too stressed to lay eggs. I live in an urban neighborhood of single family homes, with an enormous centuries old tree in the backyard that I'm sure is where the raccoons make their home. Anyway, I'm wondering if preventing the hens from seeing the raccoons will be enough... or can they smell raccoons too? Thanks Backyard Chickens members, I've found this community very helpful and this is my first post!