I am thinking of changing to a wall feeder in the run but am not sure if I should build or buy. The round hanging feeder has been experiencing a lot of waste since the girls started to lay. A couple of the chickens are now starting to pick and choose the choicest morsels in their feed and are flipping more on the ground than the others can eat. Did not have this problem until about a week ago. Using twice as much feed now as before. Since it is mostly a lightly cracked organic grain and fishmeal feed, which is close to a mash, I think I need a deeper rim around the edge to prevent this. I figured a wall feeder might be better, but I am not sure. Thanks in advance.