I have 5 chicks brooding in a large horse trough. Have had lots of chicks before, but last year... seems a long time ago. They are ~10 days old. Three out of five seems to display what looks to me like rooster behavior, jumping, pumping wings and jousting at each other. Could these be roosters or is it too soon to tell? I know in grown chickens, the roosters do the jumping and feather displays, the hens mainly just peck and skwack at each other.