We got 7 baby chicks in mid May as our first experience of raising chicken. So far three of them were roosters and we gave them some ones for free. Now we just have 4 chicken (2 Light Brahmas and 2 Americaunas) that are 18 weeks now. Our kids are concerned that we come up with all roosters at the end. Could someone kindly help us from the photos posted which one looks like rooster or how we can make sure which one is hen. Thanks in advance.