Big dogs, small dogs~ aggression~?

just find a home for her without any big dogs, she should be fine. some small dogs are intimidated by bigger dogs, and the poor little thing is probably shell shocked, she has went from being outside her intire life with no interaction to inside with these HUGE (they seem like a huge threat to her) dogs coming at her, she is just trying to protect herself. just let her know that its ok, and dont bang her cage it will only intensify her behavior. just let them fight it out...a little dog cant do much to your bigger dogs. and when she stops and calms down give her a treat and then she will realize...if im calm and non aggressive around other dogs then i get food! yummy. thats how dogs work. i hope i helped!