I purchased two Barred Rock chicks from TSC about 13 weeks ago. As time went on I was 90% sure they were both roosters. One of them started crowing about 2 weeks ago and his tail is definitely starting to take the shape of a rooster tail (upright and starting to crest over), so 100% rooster, no doubt. However the other one hasn’t crowed at all and its tail is shaped a little differently. Should I hold out any hope that my other presumed-rooster is actually a hen? The first two pics are the chicken in question and the third pic is the definite roo sibling for comparison. Thank you!