Support your local market pet stall! We sell bird feeders much cheaper than garden centres and the RSPB!
We sell a stainless steel feeder which is mesh, but has a solid tube which slides down to cover the mesh when the squirrel jumps onto it. The weight of it brings the tube down and the squirrel slips off onto the floor and has to climb up and try again. The tube returns to its proper place when the weight of the squirrel is off it. They sell in garden centres for about �25 and we sell them for about �15.