i am going to make moving screens like the one in the picture... in the pic u can see the screen is in two parts. one part in question is on a angle and has 4 holes to let the bees in. why is that on a angle? is that needed?
where is iddee when you need him? snoozin' I might guess?
not an expert here but I permanently attach mine to the front (mostly 5 frame nucs and simply use three thin sticks and some #8 hardware wire. when I move I stuff the top opening with cotton (rags). if confined for a spell (like say I am using cells and not mated queens) I wet the rag (typically once a day) to give them some water.