Hi all. I'm new here and new to raising chickens. I recently became mama to 2 little chicks and I am not allowed to keep them if they are roos. It's a city limit thing I was hoping you wonderful people can help me determine the sex of my little ones. They are about 3 weeks old and are buff brahmas (or so I was told). I'm hoping the attached pictures aren't too large. This is just one of the chicks. They look about the same but the other isn't nearly as still for the camera.