Future chicken owners here in Nebraska, looking for some advice about best breeds to try. We are planning on 4-6 laying hens, and also some broilers. For the hens, we need some that are docile (we have 2 small children who will be learning/helping). Need to be tolerant of cold in the winter (our wind chill is BRUTAL), but we also have periods of extreme heat and humidity in the summer. We would like good layers of course, 3-4 eggs/week would be fantastic. Some breeds on our short list are as follows: Ameraucana Australorp Barnevelder Brahma EE's Orpingtons Rhode Island Red Plymouth Rock Please weigh in with your opinions/experiences. We are taking this fall/winter to research and prepare, and hope to get our chicks in the spring. Thanks in advance for your advice!