My mother in law is looking to start keeping chickens here in Michigan and wants 4-5 hens. She lives in town and has lots of grandkids over so wants birds that are quiet, calm, friendly and can handle our cold Michigan winters. I think it would be fun also to have a mix of egg colors - blue, green, brown, dark brown, white, pink etc. to be pretty and also so she can tell who is laying eggs, and who is not. I would like to stay clear of EE/Easter Eggers and purchase purebred breeds. What would be your suggestion for the perfect mixed-color egg laying flock for a rainbow of eggs?