This year we decided to cover the whole 24' of the front of the run with plexiglass (faces south). Last year we only did the first 8', with the rest & top done with visqueen. Unfortunately couldn't get the 16' of new cut to size til today or tomorrow, so a lot of this 4-5" of snow is blowing into the run. Birds don't seem to mind too much, though; they have plenty of area to hide from the wind & at the moment are thrilled with all the "white candy" & on the ground & eating away! They sure hate walking on it (except the French girls), but will choose it over their water all day long!