Two of my 4.5wk old chicks keep goung head to head and challenging each other. Roosters?

[Deerling]

Our bantams fight 100 times more than our large fowl do! None of them are adults yet, but just something I've noticed.

 

[farmer boy]

just because their big or small doesn't mean they could be a roo or a pullet because my biggest chick i had was a roo and my smallest was a roo so its random unless if u wing sexed them when they were day olds or vent sexed them

 

[jkhenry]

i have 2 rir that are starting to do that at 28 days old but the combs they are gettin indicate they are both roos