I have a flock of 15 assorted chantecler. For the last several weeks I have noticed that at least a few of them have very loose droppings. The color is right, but there are at least two birds that are like this every time I have been able to observe them go. Most of the chickens are having normal droppings. One of the affected birds is just a little less active than normal, but she is also molting a bit. The other affected birds have been behaving perfectly normal. Is this anything to worry about? I was thinking of finding a local vet that could test a sample, but since the birds seem to be acting normally, I thought maybe it wasn't a big deal. The birds live in a coop that is fairly clean (I think, but don't see many others so it is hard to judge). They have been on the same feed for a while, but give them fruit or greens off and on. It has also been cold here, which might be stressing them out. Any thoughts would be appreciated.