I am looking to purchase 25-30 chicks soon. In the past I have had problems with death at all ages. I am looking for a variety of breeds that lay all colors and can do just fine in the cold, I live in Des Moines and this year we've had wind chills down to -35. I would prefer fairly good egg production but overall just hardy chickens. What suggestions of breeds do you have? I am looking at getting them from Murray McMurray, from what I hear to be the best hatchery but if this is wrong please let me know. Thank You.