I have 2 frizzles hens that are about 3-4 months old now. They have a coop and a 5' x 8' run out into the yard. When they were little would hold them and they were fine. Now that they are older they absolutely freak out anytime I even come into the yard. If I enter the coop or chick run to clean out the coop as I did today, they run from me and even trying to run themselves through the chicken wire fence. I don't want them to hurt themselves and I never mistreat or have mistreated them. Is there something I can do to make it so my chickens don't fear me or have the behavior to want to run from me? I picked both of them up and held them briefly today to let them know everything was okay. It's like the older they get the worse their fear is and it happens with anyone else too, not just me.