I have a bantam polish chicken and am having a hard time figuring out if it is a boy or girl. She is 12 weeks old and has a long flowing tail. I have heard her crow several times but she does not do it routinely. I had a chicken that I realized was a rooster not long ago and thought that my polish must be a hen because he tried to mount her, but I’m still not sure due to how flowing her tail is and the fact that she occasionally crows. I have attached pictures but was unable to get one of her straight-on. Please let me know what y’all think. She has not started laying eggs yet. Also, her back feathers are ruffled up somewhat because I have a sling wrapped around her for her wing. She broke it about one week ago.