So being new to chickens I have some questions... I have 6 hens, 2 black sex link and 4 Rhode Island reds. They are about 10 weeks old, and I know they won't start lay until they are 20 or more weeks but I'm curious as to what to expect. We have a coop up in the barn with plenty of nesting space, but will they know to just go in there and lay eggs or how do they learn? Also at what age should I switch to a different feed? They are eating starter with a little chicken scratch every now and then. But I'm almost through the bag of starter feed, and want to know if I should buy another. Also we are going to do free range so at what time should I start letting them roam?