I'm new to chickens. My 4 week old chicken does something that I was wondering if anyone knows what this behavior means? while standing still, ( she) will rub her beak side to side across the ground like if she is trying to get something off. Or after i pick her up she will do the same thing on my arm. It doesn't hurt me, but I was just wondering if this is some kind of warning or maybe a rooish behvior? I have no idea what breed or sex my chick is...just wondering. Any thoughts on this would be helpful.