I have a Colombian Wyandotte hen that tried squaring off with a Cuckoo Maran rooster the other night. I didn't notice anything wrong and then this morning I noticed some dry blood on the back of her head. It's not deep by any means, but it does cover a wide surface area. She is acting perfectly fine- eating, drinking, pooping, laying eggs, scratching around. So what I'm wondering is- how do I keep her wound clean? She lets me pick her up and touch it so that won't be the problem.