introducing chicks to chicks

[atr04screw]

I have some little chicks, 4 plymouth rocks and 1 blue cochin, and they are about 2 weeks old. In about a week or two, a friend is going to bring me some week old chicks for me to raise for him. Do I have to worry about the bigger ones picking on the little ones?

 

[TwoCrows]

I would definitely keep on eye on the new babies being introduced. I have heard that you can safely introduce new babies when the original ones are still 2 weeks old, as about this time the pecking order is starting to be established.