My daughter is 9 and has been researching owning backyard chickens for about 7 months. we are now to the point where we have agreed to get 2-4 chickens this spring. We think we would like 2 Barred Rock and 2 Rhode Island Reds. Is it okay to have a mix of breed? I am sure I will be reading a lot of articles in the coming months. So happy to have found your website!