I had posted in 'behaviors' that one of my Barred Rocks (Alice) has bad breath, sour smelling. She is just over six weeks and is fine in every other way. They have been in their coop for over two weeks now. She has had the breath since about the beginning. They freerange frequently. I give them treats. Mostly oatmeal, watermelon and yogurt. All of which they love. Plus what the eat in the yard/garden. They really don't like earthworms as strange as that may soung. They almost never eat them. They find them and chase each other around and peck the heck out of the worms but don't eat them. Again, Alice is eating, pooping and acting normal in every other was so far as I can tell. She comes and sits with me frequently (as do all my Rocks) and I don't feel any swelling in her crop area. All that being said it has been suggested that she might have sour crop. I am already giving them some yogurt. Should I give more and what else might I do for her. I think I should probably just treat her like she does have sour crop as I can't see the treatment harming her and if she does have it I could clear it up. She seems totally fine but I don't want to wait for a big issue to manifest. Please help, Alice is my special girl and I can't think of something bad happening to her!!! By the way, I keep their run/coop extraordinarily clean, their coop is very well ventilated too. I clear out the poo from their coop every day and I clean their run a couple times per day.