No crowing yet. We have two that we thought were roosters - the Rhode Island Red and a Columbian Blacktail. We also had a silkie that just crowed for the first time yesterday which we had thought was a girl until that point. We just gave the silkie to a friend, and so we're hoping at least one of these two are roosters. They are much bigger than our hens but I'm not sure if that's due to breed.U heard any kinda crowing?