1) I have a hen raising a peachick and a few more hens setting on pea eggs. Some of these hens live in a coop where they free range during the day in a 2 acre pasture. Would peas take off when older and fly over the fence? 2) Also how long is desirable to keep them confined if they are going to free range during the day? 3) How long would new peas perhaps already grown need to be confined before free ranging them so they know where they belong? Thanks.