My 3 year old Barred Rock, who has never been broody before, is brooding. She is one of my friendliest favorite chickens, and when she finally came off the nest she didn't seem to want to have anything to do with me. Also was puffing up and holding her wings out, reminding me of a male turkey strutting. Is this normal brooding behavior? We did just get a rooster, but he is only about 15 weeks old. Could this maybe have something to do with it? Any advice is much appreciated!