We noticed some small rice looking worms/eggs in several of our chicken's poop and finally decided to worm them. After much research we decided to use Valbazen since it seemed to cover all the types of worms chickens could get. We wormed beginning of October (1/2cc per standard, 1/4cc for bantams) and repeated the worming on day 10 for all the chickens. Now a month later, we see the same rice looking worms/eggs in several poops. I am very frustrated because we did not want to worm in the first place but decided that going into winter we would rather our chickens not have to manage worms as well as the cold. How many times does it take to get rid of a tough case???? We lost a young silkie hen last week and I suspect it was the worms that got her. We just want a healthy flock and work hard to keep their pens as clean as possible but are at a loss for what to do at this point. Our flock consists of about 25 birds and we would really appreciate any advice about what to do next.