I'm having the same situation. My girls are about a week old today, and still scurry and scatter when they hear loud noises or I cough. They're in the bathroom, so maybe it just echoes a lot? They seem so skittish! I handle them at least twice a day, and make sure to hold everyone for a few minutes each (I have 12, a mix of BO, BA, RIR, BR, and EE). The Buff Orps are so sweet and let me handle them, as are the EE. The Barred Rocks scream bloody murder whenever I put my hand in the brooder or take them out! The Blk Aussies are hit or miss, but won't fall asleep in my hands like the RIR or BO.
So is it advisable to keep handling them while they're chicks, or not worry about it until they're a month old? They don't seem to be particularly food driven yet...a couple RIR and BO would eat out of my hands, but the others mostly scurry away. I thought socializing had to happen early? Any more advice would be great!! Thanks guys!!