I have a 24 week old Araucana hen who was acting normal until about 2 weeks ago she started crowing. Now a few days ago she is chasing the other hens around trying to breed with them. I am not sure what to do about this or why this is happening. I am 100% sure she is a hen although she hasn't started laying eggs yet (neither have the others who are the same age). Is their something wrong with her?