I need some opinions on this plymouth rock. This is our first flock of chickens, and they are about 4 months old now. When we purchased them, they were guaranteed sexed female. I have uploaded a picture of our chicken; as you can see the comb is more develop compared to the other chicken in the picture. I have been reading some other forums about how they will start crowing anywhere between 3 to 4 months old, and for a few weeks now he/she has been groaning loudly (is the best way I can describe it), but it has not sounded like a definite crow. The other thing that makes me question the sex are the feathers - from pictures I have seen online, the feathers haven't grown in around the tail and neck like a rooster. So, what are your thoughts? Do we have to get rid of our chicken (as roosters are illegal here)?