We are very new to chickens. About 3 weeks ago we adopted 23 barred rocks. That includes one very interesting rooster named Spike. He's pretty gentle, eats out of our hands and wasn't showing any aggression. All of a sudden he started attacking my mom whenever she would feed them. The first time it happened she had thrown out the wrong food. She thought she threw them some corn but it was their crumble instead. After that day he seems to want to attack her when she's around. My 6 yr old daughter and I are always hanging out with the chickens (including Spike) and he's never show me or her any aggression and even seems to like hanging around us. He is afraid of my husband and my dog. Neither of them have ever hurt him or the hens. My mom shares the work with me, the cleaning and feeding so she is in the run about as much as I am. I'm just wondering what it is about her that's got him bothered. Any ideas??