An interesting idea for moving screens that I don't recall ever seeing.
The lower section of the screen has four holes in it to let the bees in and since it is slanted inward the theory is the bees will not find there way back out.
http://www.beesource.com/forums/showthr ... ..-see-pic..
moving screens with 4 holes.
moving screens with 4 holes.
Just some thoughts.