I'm brand new to BYC and spankin new to chickens. Or any animals really. (sad childhood, huh?) I have 2 sexed Black Australorp chicks that we got at a farm store a week ago. The kids wanted to name them of course, and I was worried about being able to tell them apart, however from day one they have been totally different. Who knew chickens could have so much personality? Isabelle is quiet, shy, and small, while Lindy (maybe Lenny) is significantly bigger, braver, louder, and has almost successfully jumped out of their deep plastic box. Isabelle will run and literally hide under Lindy. And now at 1 week Lindy has a bunch of tail feathers already sticking out, while Isabelle has nothing. So is that much difference in hens normal? Are the things I mentioned indicative of roosters? I can try to get a pic of the tail feathers if any can give me iPad help. I'm new to Macs too. So much newness.