I am looking at raising sussex and australorp chickens in the near future and I was wondering if anyone has experience with these two breeds. I will be living in a temperate climate with cold winters. I need to make sure they will not only do well together, but also be ok with the other animals and children on my farm, I do have have a very large run for them. Is their egg production truly as wonderful as 260 per year? Any first hand knowledge of these types of birds would be great. Thank you!