Those of you who are bothered with Squirrels will know how clever they are.
Every year sales Reps come in with "Squirrel Proof" bird feeders and we have a wry smile to ourselves.
One such model consisted of an outer cage put round the bird feeder to keep the squirrel away from the bird food in the feeder. The spaces between the outer bars were such that a bird could get through but a squirrel couldn't - or so the designer thought!
Check for yourself below.