I like those suet blocks, but they're quite expensive and the poor hungry starlings wolf them down in minutes. So I make what we used to call as children 'Bird Puddings'. You get lard (it's cheap) and melt it down gently in a pan. Add anything you have, for example porridge oats, breadcrumbs, a few raisins etc and pour it into those metal foil Chinese takeaway containers or small Christmas pudding basins. Put in the fridge to set hard and voila! To get the block out, just dip into hot water for a second or two. I put some on the ground and some hanging in the apple tree. I don't mind squirrels at all, they have to eat, God bless them. But they don't come to our garden, don't know why not!