So that back part of our shed used to be a chicken coop when the last owners had the house and I decided I wanted chickens, so I bought some chicks and started cleaning the coop. I have already gotten most of the old cans and other trash out of there, but since the coop has been sitting awhile there are lots of abandoned dirt dobber nests on the rafters and a lot of cobwebs. Yesterday I cleaned most of the dirt dobber nests out, but my friend and I found out that not all the webs were old and abandoned.,. We found big brown spiders living in them, which we killed, and then yesterday evening I found out that they were brown recluse spiders. I also picked up a small piece of brick and found a small coral snake (red touched yellow). I killed it with a .22 though, then burned its body. Anyway, I'm not that worried about snakes, because I think I can keep them out, but the spiders are everywhere. What I need to know is: Can these spiders hurt my chickens when they are old enough to be put in there? and Should I bother cleaning it up still, or should I just make myself a new small coop? I'm not really sure I want to work in there after that, but I will if I have to.