So we got some new (what we thought were) girls recently (approx 8weeks ago) and one of them has grown significantly more than the others. He/she is a bluebell/blue ranger, which we've not had before so we're not used to the look of the new breed (the other girls are all different breeds as this was the last left so we've got nothing to compare to). We've also never had a roo before so no idea what to look for. This chicken is much bigger than the others and my DH suspects that is a roo, I'm not sure. Can anyone shed any light?