Jealousy- Buff Orp. pecks and chases other hens

[QueenPeppermint]

They are all the same age and have been together since chickhood. Well I have a Buff Orp. that is very friendly and loves to be picked up by me for a scritch on the neck. Now, if I pick up any other hen, she will peck and chase them away if I don't grab her attention from them. I think it pretty funny (though I do worry about her really hurting another hen one of these days) and I was curious if anyone else has experienced a jealous hen like this?

 

[TwoCrows]

All my Australorps are super lap babies and when I sit down in the run with them, somebody always wants on my lap. But occasionally one of my girls, Molly, will peck at the other to get off, even if she doesn't want to sit in my lap. I think she considers it hers. Molly is a momma's bird and can get jealous of others in my lap.