I have a 1 year old Brahma hen. When I sit outside with her and don't have socks or shoes on she will run up to my foot, freeze, and stare at it. The other day she did something even more strange though. While she was staring, her feathers slowly rose and she did a very quick and aggressive shake with her feathers. She did this 4 times in the span of about 5 minutes. I'm just curious to know what this behavior is, and why my foot is triggering it. My guess is that she's scared or threatened by my foot but I don't get why she just stares for minutes on end and doesn't run away or peck at it. Also, why my foot? Anyone have a chicken that does this or something similar?