I have only had chickens a couple of months now. I started with 8 and 4 died after about 6 weeks. One was dying a week and I never did find out exactly what caused it. I treated with Sulmet. The 4 remaining seem very energetic, eating and pooping well. It has been almost 3 weeks since any died so hopefully whatever the sickness was is over but I am still of course learning and trying to do what is right for them. I do have several questions that I cant seem to find the correct answer for, maybe on here but widespread. Please help with any if you can. 1. Do feeding mealworms themselves cause worms in the chickens? 2. My chickens have the usual TSC red and white plastic waterer (which I hate) and I am trying out a 10" round dish (about 4" high) as a waterer and they drink very well from it but like to stand on the edge and poop sometimes gets in the water. I change it which I find that but wondered if drinking from it before I can change it will cause disease? 3. I read on a post here that one of the signs of cocci in the chickens is hearing them make the "cocci thrill sound". I find nothing to substantiate that in all my reading. Is that true or just a particular persons idea? 4. My chickens are constantly scratching themselves with their foot especially around the head. I have dusted them with poultry dust and will do a followup treatment but wondered if this scratching is just normal chicken behavior or is it indicative of a problem? Thank you.