It could be that they had coccidiosis, but are recovering. In many instances birds get a touch of it and recover ~ but remember, once there is blood there has been intestinal damage. Not something unconquerable, but take note as it can take its toll on a bird's health in the long run.
It's a good idea for chicken owners to order a few essential drugs (like something for coccidiosis, and one or three general antibiotics) and keep them in a medicine kit so they are handy when needed.
The best advice I would give to anyone regarding coccidiosis is to keep your flock as healthy as possible: fresh air and sunshine, lots of exercise, keep things dry and clean, use quality feed, wash and refill waterers regularly. Offer fresh non-citrus fruits and vegetables as treats. Use vitamins, electrolytes, and probiotics if you are so inclined (I am). The best defense any creature has against illness is a naturally-strong immune system.
And if all else fails ~ use good drugs.
In all seriousness, though, please keep us posted on how things work out with your chickens. Good luck!
i never would have thought i'd love the little guys so much, so hang in there.
