Hi folks! I'm new here and new to the chicken world. I recently adopted two chicks and I'm not quite sure the sex of one of them. I know the white color one is a pullet, but I'm unsure of the darker colored one. I have more pictures. The sex of this one is really throwing me off. My best guess is that these chickens are about 7-9 weeks of age. Any ideas? Thank you all in advanced.