I'd like to get some ideas on what I'm going to build for my emus. Here's what I'm thinking, I'm going to use one of my horse stalls for their shelter, and I'm going to take the old section of horse pasture outside of the stall as their run. All I'd have to do is get different fence to wrap around it so they can't get out. The pasture I'm going to use gets muddy when it rains, so one of these days soon I'm going to clean it up and plant grass in it. Are there any plants I can plant in the pen, like a bush or tree for shade if they want to lay outside on a sunny day? What do your pens look like?