Hi there and welcome to BYC. I have no idea what breed peachicks are, so I had to look it up. LOL Needless to say I am no help. From the pictures I saw they are very beautiful. My only advise would be what I did with my really skittish chick; I went to a small enclosed space and put her and my other chicks on the floor and let them come to me, didn't try to pet or make any sudden moves. Waited, waited and waited (did I mention it I waited, LOL) After several times doing this daily, she finally started slowly to come and jump on me for a few minutes (seconds) and run away. To be honest she still is not affectionate, as being petted or being picked up, but she does jump on my back if I am bent over and walks up to my shoulders and talks to me. She does run to the door when I enter (to see if I have broccoli leaves most likely from the garden. Not sure this will work, but worth a try.