For the past couple of weeks I have been dumping leaves into my chicken run. When dry, they were all nice and full of colors. After about 4 days of rain, the leaves in the run have turned almost black. There is about 6 to 8 inches of leaves in the run, and when I walk in there it feels like I am walking on a damp sponge. But it is not muddy. My chickens enjoyed the fresh, dry, leaves, but I don't see them nearly as active in the leaf litter now that it is wet. Anyway, I am just wondering if the leaves turning black is just part of the process of breaking down, or is this going to be a problem I should correct? The wet leaves out in the yard are still colorful, not black at all. Here is a picture of my chicken run with the leaves and you can see how the rest of the yard looks like. The sun came out today, so I mowed up a lot of new leaves and dumped then on top of the old leaves in the run.... The chickens are much more active in the dry leaves. They like scratching down the high pile of leaves and soon it will be flat. Anyway, let me know if the leaves turning black is something to work on, or is this to be expected and just part of the process. Thanks in advance for any suggestions.