I have two young chickens. Both of them are healthy looking and their cage seems pretty clean. However, a few days ago, I found that a rat/mouse was digging under their cage to get their food or water. They haven't been physically hurt, but since I've noticed the rat/mouse holes, I've noticed that they shake and scratch their heads a whole lot more than they usually do. I think this may be from the rat/mouse getting the coop and water filthy with gross germs. At first I thought they'd be fine and maybe today they just decided to be a little bit more weird than normal and didn't think much of it. A few days later it's seemed like it's gotten worse. These, luckily, are the only visible clues that my chicken may be sick. My questions are.... If I move the cage and clean it up and wash the food/water despencers and make the coop rat/mouse proof, do you think they'd be okay and get better? and... What do you think this is? I know that these are symptons for a lot of things, but I think there is some connection to the mouse/rat.