Welcome to BYC! Please make yourself at home and we are here to help.
Congrats on your new chicks! Bantams are especially cute! Definitely check out the link provided by Wyandottes7. Some good indicators that you have roosters include: larger combs and wattles, slower to feather, tall and upright stance and a bossier behavior. Here is a good link on determining gender https://www.backyardchickens.com/a/is-my-chicken-a-pullet-hen-or-a-cockerel-cock
Good luck with your flock and welcome to ours!
Congrats on your new chicks! Bantams are especially cute! Definitely check out the link provided by Wyandottes7. Some good indicators that you have roosters include: larger combs and wattles, slower to feather, tall and upright stance and a bossier behavior. Here is a good link on determining gender https://www.backyardchickens.com/a/is-my-chicken-a-pullet-hen-or-a-cockerel-cock
Good luck with your flock and welcome to ours!