Hello, I am fairly new to chickens, got my first two hens as babies about 6 months ago. They are doing just fine, but I got in two today that I think aren't as healthy as mine are. I have no idea how old or what breed they are, but I am pretty sure one is a rooster and the other is a hen. Both are significantly dirtier than my two, although they were free range and mine are not. The biggest thing that worries me is the cause of the amount of mess on the new hen's bootie. Her rear end is really gross....covered in poo and dirt and really matted looking. I happened to see her poop, and she actually turned her rectum inside out to defecate, although she was able to pull it back in when she was finished. I stopped by the feed store on the way home to get some stuff, and picked up some Wazine 17 dewormer and also some Sulmet Sulfamethazine Sodium 12.5%. I thought that maybe these things added to the drinking water for a few days (not both together) might help? ??? I apologize for this picture, but here is the new hen's derriere: Can I wash her somehow? Neither her nor the rooster are used to being handled, but neither are mean and were relatively easy to catch and handle. Any suggestions/advice are much appreciated!!