I have four hens who are all 1yr and three months...great layers. My problem is that I let them out of the run to free range in my yard when I am able to supervise them, they have all been very good about running to me when I get the yellow bucket of meal worms as their treat to go back into the run. Recently my Barred Rock "Thelma" is refusing to return to the run she makes a bline in the opposite direction after everyone else runs in.....it is making it to where I now am thinking about not letting her out to free range in fear that I won't get her back in.....we have a lot of hawks in our area so although my yard is fenced in I am afraid to leave them out un attended....any ideas????