Ive never wormed before and was wondering what wormer is available here in the u.k without a vet prescription and relativley cheap? Also i have around 30 Orpingtons, 4 medium breed ducks and 4 embden geese, i was looking for a multi bird wormer and something i could get in a decent quantity to treat them all. Ive been told by a good friend to use Ivermectin drops 1% but unsure of dosage and the bottle comes in 10mls for £25 so unsure whether this would be enough?? I'd very much like to worm them as a couple of Orps are looking pasty faced and thin, i would like to nip it in the bud now. I plan on using Diatomaceous earth in the baths and coop also maybe in the food along side the wormer, would this be ok or too much? Also dosage on DE for feed would be appreciated. Hope you guys can clear up my confused mind, Im very unsure which way to go with this and would like to get it as close too right as poss (i know you will all achieve this for me!!) thanks in anticipation!