Minecraft wiki entry for Egg_farming, associated text: Note that the dispenser is purposely separated from the collection hopper/central pillar, to allow for the dispenser's variable aim. The slab (or other transparent block) between them is only needed if you add the optional chest, but if you do, an opaque block there will prevent the chest from being opened. Note that as of version 1.14, you can place the optional chest without connecting it to the main chest. It will still feed into the egger, but may be useful for stashing extra eggs, especially when you are about to harvest and want space in the main chest for feathers and meat.