Got my babies on Tuesday. They all seem happy and healthy. However, my RIR, Martha, has a bit of poop on her butt. What constitutes "pasty butt"?? Is it any type, amount of poop? The area looks clear just a bit on the tips of the fuzzy feathers. I've cleaned it a couple times to be on the safe side, but I don't want to handle her too much either. Any advice/suggestions?? Thanks in advance!