I am pretty sure these chickens were well cared for the lady I got them from loves chickens, she breeds all different kinds and is so knowledgeable and loves all of her birds, most of them free range and when we were there they are all so friendly and talk to her and follow her. All of the coops and runs I did see were clean and didnt smell too. She just has alot of chickens and I don't think she bathes them, she has so many! The 2 that smell bad are molting and look like little porkeypines. They smell like chicken poo but there feet and feathers don't have anything stuck on them, they appear to be fine, a bit nervous about there new home but eating good, poo looks normal, no discharge anywhere either. My daughter and I hold our other 2 silkies and 1 polish all of the time and we starting giving them baths when they were 5 weeks old about 1x a month. They love it! They have such a beautiful shine to there feathers when there clean! So maybe it's just that our chickens are over clean and the fact theses new chickens are molting probably doesn't help with the way they look! The polish is black and white and would be so much prettier if the white in her feathers was a bit whiter. I'm going to try the sand first to see if it helps for now. Thanks so much for your help!