My chickens have little white things in their poo. I am guessing they are worms. I believe they are worms because I have seen them move. They are the size of a 1/4 piece of rice. The laying production is way down, & some of the hens are sneezing and coughing. I don't find the white things in every poo, but I do go out to the pen four to five times a day to clean it up. I don't know how the worms work so I figure if my chickens have worms, I don't want the worms hanging around in the pen. I have read some new and old postings and I am so confused it's not funny. Some say to use Valbazen now and others say to use Wazine first then come back 14 days later with the more powerful stuff. Evidently, some say, if my birds are infected in which I can see, I or rather my chickens have a bad infestation of worms and if I use a powerful wormer it could possibly cause a blockage which would give me more problems and the chickens too. Could someone PLEASE advise me on what to do so I don't go crazy or do more harm to my babies. I have; 1 Americauna (4yrs), 1 Batam (4 yrs), 4 Am. Game (3- 4yrs and 1-1yr), 2 Australorps (1yr), 1 Sexlink (1yr), 1 Barred Rock (1yr), 2 cochin (7months) and 1 Buff Orpington (7 months). Oh, the 7 month olds don't seem to have any problems as they are fenced separately from the others even though they are in the same pen. Thank you very much for your help and concern.