hi! I'm a mom of four kiddos and we want to start a chicken family this spring! We will be building a backyard coop with a fenced in area for our chickies. i'm reading and learning all that I can, but I'm looking for advice on the easiest/friendliest/good for kids/lay reasonable amount of eggs/can stand the winters in the NE well chickens! I'm not sure which type to get! And, can you "mix and match" chicken breeds or should I stick with one type? Thanks for any advice fellow NYers!!