Hi, we're new chick owners! We just bought 3-5 day old pullets...a delaware, a red star, and a partridge rock. When is the best time to start handling them? We just got them yesterday, so I don't wat to stress them too much. They were purchased for egg laying, but we will never cull them and they already have names...so we want them to be friendly and to like people and to not mind being touched. What's the best way to handle them? Also, at what age can we give them small treats, like yogurt, or meal worms?