Hello! I got two Buff Orpington Chickens in May. They're 17 weeks old. One is MUCH bigger than the other, but they came from the same flock at the same time. She's showing signs of being a roaster (she crowed at me a few days ago! - Although I heard some dominate chickens crow when there is no roaster.) Audrey doesn't have a spur on her foot yet, but a large lump that may be one eventually. (Sophie has a little bump too, but much smaller.) I attached pictures of Audrey (Roaster-in-question) and Sophie (Much smaller little chicken) and a clip of the together for comparison. Does Audrey appear to be a roaster? They were suppossed to both be hens, but now I'm not so sure.