I have 6 backyard chicken at this moment. 3 years old , 3 speckle sussex. 6 months old , 1 australorp, 1 welsummer and 1 buff orphington. Speckle sussex are pretty much hand tamed, very social with people. Others little less. Speckle sussex are little harsh on the young ones. I let it be so they can establish hierarchy which they did. About 1.5 week ago, one of the young chicken, welsummer, start acting broody. I took the eggs from underneath, she still wants to sit all the time at one of the nest box. We gave them 5 more nest box, so it would not be issue. I take welsummer out of nest box, she drinks little bit, eats little bit and goes right back to nesting box with no egg under. I will put her broody cage with wire bottom tomorrow. But everytime when I took out of nesing box so she can eat, she has been attack by speckle sussex more than usual. they really go after her, she runs. They run after her. Why is that? They always see her, it is not like she is strange chicken. They sleep in the same coop, while welsummer still in the nest. Is that possible welsummer wants to be broody so she would not be attack? Do the sussex feel she is high in hormon , that's why they attack her? I am not sure what to do. Any experience? Any suggestion? I do not have rooster.