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Homemade Feeder Shim

5.7K views 15 replies 9 participants last post by  Dschwartz  
I drill a 1/2 inch round hole in the center of the front of the feeder shim. I closed the notches in the inner cover. The round hole is a back up entrance should the bottom get blocked by ice or dead bees.. It also provides a modest upwards convective fresh air for the hive.