Drilling a series of holes with the small drill bit around the neck helps slow down such moisture buildup. ?) Slide the colored plastic base (now the feedera#39;s cap) up the hanger wire nigh enough to allow you to pour in thistle seed. Hang your feeder in a ... 3) Put the large end of the cone over one end of the PVC pipe and fasten it into place with three dry-wall screws (see diagram). 4) Slide the PVC cap ontoanbsp;...