Hi, Im new here, and loving all this information! My husband and I are planning on doing an urban coop in our back yard when spring hits ... So I have a few questions! We plan on converting an old wood lean-to into the coop (closing in the sides, adding door, and of course keeping it ventilated with windows ect) The run will be that side of our back yard (the other side is for the dogs), which is currently fenced in on neighbors side with a 6ft wooden fence, and on the "yard' side, with 3 ft hog wire. This is a large area, probably 15' wide by 30' long or so... We are fine with the chickens having it all during the times we are there. BUT, what about that 3 ft fence? How high does it need to be to keep them in? We are not settled on what breeds we will have (although we are limited legally to 3 birds total) - and I know breed can vary the fence height. But any general info will help us. Thanks much!!