I wormed my flock with two doses of Safeguard back in late August or early September. I haven't seen any signs of worm infestation, but I lost a hen this morning who was suffering from slow or sour crop and who didn't respond to any of the recommended treatments I tried. I don't know that she had worms. I read that many people treat for worms twice a year, and that's what I was planning to do. Do you think it's necessary to worm now as a preventative or just stick with my plan? I'm very inexperienced with this and want to do what's best in the hopes of keeping everyone healthy. Thanks!