My hen does this all of the time the only difference is I don’t have a tom I used to but I sold him there was nothing wrong with him and he wasn’t aggressive just a lady wanted him so I sold him when I did have him he only tried something once he bowed up to me and kinda came at me so I smacked him several times hard and he never tried anything with me again I think a reason why he backed down so quickly is because they were raised with some very opinionated chickens who would put them in their place. I hate that she does it but it does make it easier to pick her up to put her in the pen so that is kinda a plus a negative is when I trip and almost face plant because she sits right in front of me while I am walking