Yes I only saw the 2 and that was by chance, sitting on the sofa gazing around ..as you do...thought crikey that blue tits got a funny tail, looked closer and realised what it was and 2 of them obviously a pair the way they were twittering around the fat ball.EJ everything goes on the fat balls here. I've seen the robin, sparrows, bluetits, as well as the starlings and the ones that hover around underneath, blackbirds, thrushes and dunnocks. I tie them on with a bit of string onto the trees I can watch them from the front room window then. I just love the spring when they're all so busy. A few months time when the babies are gone it goes all quiet.