When I had a sick chick living in my home office, I played a classic rock station for it constantly to keep it from getting lonely. I expect any day to go into the run and find it wearing an AC DC t-shirt now.I talk a lot to my 13 5-week-old chicks. Usually two or three times per day. I say "chick, chick, chick" when I enter their brooder shed, and then whistle to them, kind of a meadowlark song. They seem to enjoy it. We handle them a lot too, and they all like to sit on our knee and sometimes start to fall asleep there. Also, I play the radio for them almost all day, a mix of country and rock classics, to keep them used to the human voice. Seems to be working so far!
Doug