Roosters?

[km22]

I have 3 RIR, 5 weeks old. Two of them look different from the 3rd and are much more aggressive. First time chicken mama here so not sure when/how you can tell.

 

[Folly's place]

Welcome!
The first two birds pictured are cockerels; do you have a plan for them? Hatchery RIR cockerels have a (well deserved) reputation for often being human aggressive, and if these are your first chickens, I'd recommend moving them on soonest. Enjoy your pullets, and avoid cockerels this year.
Next year you will have adult hens and more experience, and may have a better time raising a polite cockerel, maybe of a different breed.
Mary

 

[km22]

Welcome!
The first two birds pictured are cockerels; do you have a plan for them? Hatchery RIR cockerels have a (well deserved) reputation for often being human aggressive, and if these are your first chickens, i'd recommend moving them on soonest. Enjoy your pullets, and avoid cockerels this year.
Next year you will have adult hens and more experience, and may have a better time raising a polite cockerel, maybe of a different breed.
Mary

Thank you! They are definitely aggressive, so that makes sense! We are not allowed to have roosters per our Town rules. The place where I got them will swap them out for hens. This is our first time and my kids are loving them. The others are Buff Orphingtons and are so sweet!