I gave them a wood ash dusting last night. I have decided that they are not fleas, but it is possible that they are mites. I didn't see any bugs crawling on any of them during the bath - nothing around the vents. I went ahead and put antibiotic ointment on their combs and wattles. The rooster still has some of those little black things on his comb (this is what led me to believe that there were bugs.) This morning, they all act like they are feeling better. Almost no head shaking at all. I'm going to grab the rooster again this evening and try to get the rest of the little black things off of him. Since I won't be in such a hurry to get everybody taken care of, maybe I'll have a chance to get a better look at what they are.
We did clean out the coop with bleach and sprayed it down with neem oil. After cleaning out the boxes, we gave them the same treatment and put DE and wood ash at the bottom, and gave them fresh straw.
I have heard that if they have mites, it is possible that they have worms. Is this true? I found a recipe for a natural dewormer that includes pumpkin seeds. Only problem is that pumpkins are out of season. Does anybody have any more recommendations to treat worms?