A year ago, my wife got me to look at this blue tit feeder on "her" TV shopping channel. It was accompanied by a video, "showing lots of highly trained blue tits in and out of one." So as we get a lot of blue tits in our garden, she convinced me that I should buy one, (not really, but anything for a quiet life). Anyway, it had been there for a year and completely ignored by every blue tit. It's well-designed and constructed and so it should be for nearly thirty quid. Only birds the size of blue tits can get through the outer mesh. Two blocks of food fit in the inner wire container. A month ago, I bought a pack of suet blocks that would fit it. rather than those of dubious content provided with the feeder. Another twelve quid. Anyway. I looked out the kitchen window this morning to see a blue tit in it! But no chance of getting a photo.