My 2 week-old chicks will eat from my hand and even hop onto my hand and allow me to touch them and raise them up a bit off the floor but they go berserk if I try to hold them outside the brooder. Once they go back to the brooder they're back to eating from my hand. In spite of their spastic behaviour, it seems I didn't break their trust. Look, touch but don't pick me up seems to be their rule for now.