Aggressive male/females???!??!

[Flockandfowl46]

Pretty positive your top 2 are roos and also Rhode island reds can be fairly competitive but not saying they are the culprit just stating a behavior compared to some of the other breeds you have hope you can figure it out the may just need more time outside than a couple days

 

[valentinetodd13]

When younger They would fuss and size each other up but no pecking until they went outside.
Hoping that getting rid of the males will help.