We have 12 girls just over 5 months old. We live in Michigan and I assume the cold, cloudy weather plays a role in egg laying. YESTERDAY, when I let them out to wander our yard as I do each morning, they ran up to our house for their treats as they always do BUT 2 of my Barred Rocks (which are the 2 of my flock that seem the most mature) turned and ran back to me and squatted. What a sweet and exciting moment!! TODAY they were so noisy that I went out EARLIER than usual to see if everything was OK, I have never heard them from inside our house before. They seem to be "Brrraucking". Assured that they were fine and nothing was threatening them I let them out. Now they are wandering on their route around our yard but they are VERY noisy. Whats UP? If they are preparing to lay should I not have let them out as I want them to lay in their lovely NESTING boxes NOT all over our yard. Any Advice?