Odd behavior for hens?

[Grandpawocking3]

I have two New Hampshire Hens that are super aggressive. I actually found saw one 'doing the nasty' with one of the Americanas. Constantly running back and forth. I think they are also the ones responsible for breaking eggs and eating them. Is this aggression due to the pecking order or do I have a Henster...hen/rooster? I have had chickens in the past and never saw this behavior.
Any suggestions? We have isolated the three from the rest of the flock.
Sure glad to read your comments. Helps to solve now problems and to be on the lookout for other problems that might arise.
Thanks

 

[TheReadyBoys]

Do you think they are the 'leaders' of the flock? Maybe they are the bosses. This isn't a good thing, as you don't want them to become to aggressive. I lost one from aggressive hens. It's not a good feeling, either.

 

[donrae]

Pictures?

 

[howfunkyisurchicken]

First off- are you sure they're hens?

I have seen one of my hens mount another, in an act of dominance. I've had roosters that would mount other roosters for the same reason. I even have an OEGB hen that crows (there's been quite a bit of weirdness around here).
If they are hens, I wouldn't stand for the aggressive behavior and would cull them (to the stew pot, I wouldn't rehome them, that's probably why you ended up with them).
If they aren't hens, then they could be boys that are in a tizzy over having some ladies around. Anyway, just some thoughts. Idlike to see some pics too...
Nikki