bird feeding tables and squirrels

Having somewhat recently decided to make a bird table, we immediately attracted a host of very keen and hungry squirrels. This was not quite the desired result, as the squirrels were already keenly emptying the bird feeder in a most amusing manner.
They were simply climbing up the post of the table. So, we needed a cheap and easy way to stop them. A flowerpot is the answer, turn it upside down and cut up one side of it and then make a rectangular hole in the bottom of it. this hole should be smaller than the diameter of your post that holds up the table, Stretch it to fit over your post and then use some gaffer tape, or other waterproof tape to reattach the sides of the pot together. Finished results look like this picture and you get some mightily perplexed squirrels as a result, more photos to come.
Subsequently, I've had to add another pot so that the upper pot overlaps the lower one and the squirrels are now defeated, I think. Use a small nail to fix the pots in position on the upright of the table.
Now, instead we have attracted some urban pigeons. At least we do get some smaller birds and I suppose all the creatures are hungry...