You know tonight when I was putting the flock away for the night, I spent some time with my new 3 little chicks. Maybe 3 weeks old only. They haven't learned to use the red water nipples yet. Then I was using the hose and they started drinking it out of my hands. Very calmly too. Seems like this might be a better familiarization practice than food. At least on a hot Phoenix day, water is more important to them I would imagine.