Well a week or so ago I had posted about a Jap bantam that I had that was ill. I ended up culling that bird. Ever since Monday night I've been finding dead birds when I went out to shut them up in the coop. Tonight I go out and I find another dead bird. When I go to look in the coop to see about the rest of them I smell this awful smell. I noticed another bird that's not looking too hot so I brought it in the house for my wife and I to look over. We got to searching BYC with the symptoms and figured out what we had going on. Went back out and looked in the coop and more of the same symptoms. I decided it was time to cull before this somehow worked it's was into my laying stock. I'm really bummed! I lost thirteen birds this week and tonight.