[bvw]

In a girl pack the one that attacks is likely to be the 90 pound hyper-energetic girl, three of four of them, like jays attacking an old hawk. Folks here do not know the reality of it.

[MrB]

hyper-energetic girl, three of four of them, like jays attacking an old hawk

Someone posted a link about how girls of this culture attack in packs. They do this weird screaching thing that has the purpose of disorienting and of confusing who is being attacked and who is attacking.
Also, they'll attack, screach, retreat, and act passive, as if they were the ones being attacked.