Chicks are 5 weeks old and one of the buff's def. looks different from the rest - bigger and more comb and waddle going on - and seems to have a different "peep" than the others. Also, he/she is the least timid of me when I'm in with them and always the first to escape out of the run if the door is open a second too long. I'll have to post a pic soon but are these signs of a rooster or could this one just be growing at a faster rate? Thanks!