The birdseed column do I rate with a clear conscience with 5 stars. Very solid design feels good. To clean a brush is. I have filled sunflower seeds. The birds have now assumed the column. I have, however, ordered a "shepherd's crook" also on Amazon, because the column of the weight is only suitable for stronger branches and are not available in the garden. The shepherd's staff had placed in front of the window. It is a pleasure to see how the birds fly, skillfully control the column and land. Due to the small opening of the birds taking only a sunflower seed and fly sorfort gone. Inside can contaminate anything. Unlike as in the aviary where the birds feed in the "run around". So awesome.