She is most likely trying to establish the dominance of the pack, some dogs act stupid and go overboard.
You need to dominate her often. Let em all know you are the dominant pack leader, and that particvular dog needs it alot more often than the others. Somebody has to be top dog, and if they are just pups they are looking for a leader and trying to make their own decisions. My decision would be to "be the leader" and take all the guess work out for the pups. Establish this in your pack, and if the dog challenges you then you know the dog has serious issues.
good advice.
and the way you dominate her, when she starts cting up you could have her on a lead and snatch her, also grab by the nape and hold her to the ground on her back.
you shouldn't have to talk when you do this.
I hate to see everyone say cull so quickly, I think you should work with her untill you know YOU have tried your best.
good luck
