Chicks chest bumping - roos?

[KingSpeck]

Of my seven chicks ( one and a half weeks old) there are two that I have several times seen standing tall and chest bumping like roos sparring. Is this a good indication that they may be roos? I can't remember my other chickens doing that when they were babies - but then again maybe they didn't because they're all girls. Just didn't know if I should keep my eye on these 'guys'.

 

[speckledhen]

Not necessarily. Both sexes do that as chicks.